20909538

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{4703}}^1$

素因数の和:4743

約数の個数: 48

約数和(自身を含む): 51367680

約数和(自身を除く): 30458142

約数列:

[1, 2, 3, 6, 9, 13, 18, 19, 26, 38, 39, 57, 78, 114, 117, 171, 234, 247, 342, 494, 741, 1482, 2223, 4446, 4703, 9406, 14109, 28218, 42327, 61139, 84654, 89357, 122278, 178714, 183417, 268071, 366834, 536142, 550251, 804213, 1100502, 1161641, 1608426, 2323282, 3484923, 6969846, 10454769, 20909538]

約数ペア:

[(1, 20909538), (2, 10454769), (3, 6969846), (6, 3484923), (9, 2323282), (13, 1608426), (18, 1161641), (19, 1100502), (26, 804213), (38, 550251), (39, 536142), (57, 366834), (78, 268071), (114, 183417), (117, 178714), (171, 122278), (234, 89357), (247, 84654), (342, 61139), (494, 42327), (741, 28218), (1482, 14109), (2223, 9406), (4446, 4703)]