20839518

素因数分解:

$2^1\times 3^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1$

素因数の和:108

約数の個数: 160

約数和(自身を含む): 60217344

約数和(自身を除く): 39377826

約数列:

[1, 2, 3, 6, 7, 9, 14, 17, 18, 21, 23, 27, 34, 42, 46, 47, 51, 54, 63, 69, 81, 94, 102, 119, 126, 138, 141, 153, 161, 162, 189, 207, 238, 282, 306, 322, 329, 357, 378, 391, 414, 423, 459, 483, 567, 621, 658, 714, 782, 799, 846, 918, 966, 987, 1071, 1081, 1134, 1173, 1242, 1269, 1377, 1449, 1598, 1863, 1974, 2142, 2162, 2346, 2397, 2538, 2737, 2754, 2898, 2961, 3213, 3243, 3519, 3726, 3807, 4347, 4794, 5474, 5593, 5922, 6426, 6486, 7038, 7191, 7567, 7614, 8211, 8694, 8883, 9639, 9729, 10557, 11186, 13041, 14382, 15134, 16422, 16779, 17766, 18377, 19278, 19458, 21114, 21573, 22701, 24633, 26082, 26649, 29187, 31671, 33558, 36754, 43146, 45402, 49266, 50337, 53298, 55131, 58374, 63342, 64719, 68103, 73899, 87561, 100674, 110262, 128639, 129438, 136206, 147798, 151011, 165393, 175122, 204309, 221697, 257278, 302022, 330786, 385917, 408618, 443394, 453033, 496179, 612927, 771834, 906066, 992358, 1157751, 1225854, 1488537, 2315502, 2977074, 3473253, 6946506, 10419759, 20839518]

約数ペア:

[(1, 20839518), (2, 10419759), (3, 6946506), (6, 3473253), (7, 2977074), (9, 2315502), (14, 1488537), (17, 1225854), (18, 1157751), (21, 992358), (23, 906066), (27, 771834), (34, 612927), (42, 496179), (46, 453033), (47, 443394), (51, 408618), (54, 385917), (63, 330786), (69, 302022), (81, 257278), (94, 221697), (102, 204309), (119, 175122), (126, 165393), (138, 151011), (141, 147798), (153, 136206), (161, 129438), (162, 128639), (189, 110262), (207, 100674), (238, 87561), (282, 73899), (306, 68103), (322, 64719), (329, 63342), (357, 58374), (378, 55131), (391, 53298), (414, 50337), (423, 49266), (459, 45402), (483, 43146), (567, 36754), (621, 33558), (658, 31671), (714, 29187), (782, 26649), (799, 26082), (846, 24633), (918, 22701), (966, 21573), (987, 21114), (1071, 19458), (1081, 19278), (1134, 18377), (1173, 17766), (1242, 16779), (1269, 16422), (1377, 15134), (1449, 14382), (1598, 13041), (1863, 11186), (1974, 10557), (2142, 9729), (2162, 9639), (2346, 8883), (2397, 8694), (2538, 8211), (2737, 7614), (2754, 7567), (2898, 7191), (2961, 7038), (3213, 6486), (3243, 6426), (3519, 5922), (3726, 5593), (3807, 5474), (4347, 4794)]