21640632

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{499}}^1$

素因数の和:660

約数の個数: 64

約数和(自身を含む): 58800000

約数和(自身を除く): 37159368

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 139, 156, 278, 312, 417, 499, 556, 834, 998, 1112, 1497, 1668, 1807, 1996, 2994, 3336, 3614, 3992, 5421, 5988, 6487, 7228, 10842, 11976, 12974, 14456, 19461, 21684, 25948, 38922, 43368, 51896, 69361, 77844, 138722, 155688, 208083, 277444, 416166, 554888, 832332, 901693, 1664664, 1803386, 2705079, 3606772, 5410158, 7213544, 10820316, 21640632]

約数ペア:

[(1, 21640632), (2, 10820316), (3, 7213544), (4, 5410158), (6, 3606772), (8, 2705079), (12, 1803386), (13, 1664664), (24, 901693), (26, 832332), (39, 554888), (52, 416166), (78, 277444), (104, 208083), (139, 155688), (156, 138722), (278, 77844), (312, 69361), (417, 51896), (499, 43368), (556, 38922), (834, 25948), (998, 21684), (1112, 19461), (1497, 14456), (1668, 12974), (1807, 11976), (1996, 10842), (2994, 7228), (3336, 6487), (3614, 5988), (3992, 5421)]