21679812

素因数分解:

$2^2\times 3^4\times 7^1\times {\mathrm{11}}^2\times {\mathrm{79}}^1$

素因数の和:124

約数の個数: 180

約数和(自身を含む): 72096640

約数和(自身を除く): 50416828

約数列:

[1, 2, 3, 4, 6, 7, 9, 11, 12, 14, 18, 21, 22, 27, 28, 33, 36, 42, 44, 54, 63, 66, 77, 79, 81, 84, 99, 108, 121, 126, 132, 154, 158, 162, 189, 198, 231, 237, 242, 252, 297, 308, 316, 324, 363, 378, 396, 462, 474, 484, 553, 567, 594, 693, 711, 726, 756, 847, 869, 891, 924, 948, 1089, 1106, 1134, 1188, 1386, 1422, 1452, 1659, 1694, 1738, 1782, 2079, 2133, 2178, 2212, 2268, 2541, 2607, 2772, 2844, 3267, 3318, 3388, 3476, 3564, 4158, 4266, 4356, 4977, 5082, 5214, 6083, 6237, 6399, 6534, 6636, 7623, 7821, 8316, 8532, 9559, 9801, 9954, 10164, 10428, 12166, 12474, 12798, 13068, 14931, 15246, 15642, 18249, 19118, 19602, 19908, 22869, 23463, 24332, 24948, 25596, 28677, 29862, 30492, 31284, 36498, 38236, 39204, 44793, 45738, 46926, 54747, 57354, 59724, 66913, 68607, 70389, 72996, 86031, 89586, 91476, 93852, 109494, 114708, 133826, 137214, 140778, 164241, 172062, 179172, 200739, 218988, 258093, 267652, 274428, 281556, 328482, 344124, 401478, 492723, 516186, 602217, 656964, 774279, 802956, 985446, 1032372, 1204434, 1548558, 1806651, 1970892, 2408868, 3097116, 3613302, 5419953, 7226604, 10839906, 21679812]

約数ペア:

[(1, 21679812), (2, 10839906), (3, 7226604), (4, 5419953), (6, 3613302), (7, 3097116), (9, 2408868), (11, 1970892), (12, 1806651), (14, 1548558), (18, 1204434), (21, 1032372), (22, 985446), (27, 802956), (28, 774279), (33, 656964), (36, 602217), (42, 516186), (44, 492723), (54, 401478), (63, 344124), (66, 328482), (77, 281556), (79, 274428), (81, 267652), (84, 258093), (99, 218988), (108, 200739), (121, 179172), (126, 172062), (132, 164241), (154, 140778), (158, 137214), (162, 133826), (189, 114708), (198, 109494), (231, 93852), (237, 91476), (242, 89586), (252, 86031), (297, 72996), (308, 70389), (316, 68607), (324, 66913), (363, 59724), (378, 57354), (396, 54747), (462, 46926), (474, 45738), (484, 44793), (553, 39204), (567, 38236), (594, 36498), (693, 31284), (711, 30492), (726, 29862), (756, 28677), (847, 25596), (869, 24948), (891, 24332), (924, 23463), (948, 22869), (1089, 19908), (1106, 19602), (1134, 19118), (1188, 18249), (1386, 15642), (1422, 15246), (1452, 14931), (1659, 13068), (1694, 12798), (1738, 12474), (1782, 12166), (2079, 10428), (2133, 10164), (2178, 9954), (2212, 9801), (2268, 9559), (2541, 8532), (2607, 8316), (2772, 7821), (2844, 7623), (3267, 6636), (3318, 6534), (3388, 6399), (3476, 6237), (3564, 6083), (4158, 5214), (4266, 5082), (4356, 4977)]