18931374

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{157}}^1$

素因数の和:215

約数の個数: 128

約数和(自身を含む): 54604800

約数和(自身を除く): 35673426

約数列:

[1, 2, 3, 6, 7, 9, 11, 14, 18, 21, 22, 27, 29, 33, 42, 54, 58, 63, 66, 77, 87, 99, 126, 154, 157, 174, 189, 198, 203, 231, 261, 297, 314, 319, 378, 406, 462, 471, 522, 594, 609, 638, 693, 783, 942, 957, 1099, 1218, 1386, 1413, 1566, 1727, 1827, 1914, 2079, 2198, 2233, 2826, 2871, 3297, 3454, 3654, 4158, 4239, 4466, 4553, 5181, 5481, 5742, 6594, 6699, 8478, 8613, 9106, 9891, 10362, 10962, 12089, 13398, 13659, 15543, 17226, 19782, 20097, 24178, 27318, 29673, 31086, 31871, 36267, 40194, 40977, 46629, 50083, 59346, 60291, 63742, 72534, 81954, 93258, 95613, 100166, 108801, 120582, 122931, 150249, 191226, 217602, 245862, 286839, 300498, 326403, 350581, 450747, 573678, 652806, 701162, 860517, 901494, 1051743, 1352241, 1721034, 2103486, 2704482, 3155229, 6310458, 9465687, 18931374]

約数ペア:

[(1, 18931374), (2, 9465687), (3, 6310458), (6, 3155229), (7, 2704482), (9, 2103486), (11, 1721034), (14, 1352241), (18, 1051743), (21, 901494), (22, 860517), (27, 701162), (29, 652806), (33, 573678), (42, 450747), (54, 350581), (58, 326403), (63, 300498), (66, 286839), (77, 245862), (87, 217602), (99, 191226), (126, 150249), (154, 122931), (157, 120582), (174, 108801), (189, 100166), (198, 95613), (203, 93258), (231, 81954), (261, 72534), (297, 63742), (314, 60291), (319, 59346), (378, 50083), (406, 46629), (462, 40977), (471, 40194), (522, 36267), (594, 31871), (609, 31086), (638, 29673), (693, 27318), (783, 24178), (942, 20097), (957, 19782), (1099, 17226), (1218, 15543), (1386, 13659), (1413, 13398), (1566, 12089), (1727, 10962), (1827, 10362), (1914, 9891), (2079, 9106), (2198, 8613), (2233, 8478), (2826, 6699), (2871, 6594), (3297, 5742), (3454, 5481), (3654, 5181), (4158, 4553), (4239, 4466)]