21551178008

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{163}}^1\times {\mathrm{403097}}^1$

素因数の和:403307

約数の個数: 32

約数和(自身を含む): 41648085360

約数和(自身を除く): 20096907352

約数列:

[1, 2, 4, 8, 41, 82, 163, 164, 326, 328, 652, 1304, 6683, 13366, 26732, 53464, 403097, 806194, 1612388, 3224776, 16526977, 33053954, 65704811, 66107908, 131409622, 132215816, 262819244, 525638488, 2693897251, 5387794502, 10775589004, 21551178008]

約数ペア:

[(1, 21551178008), (2, 10775589004), (4, 5387794502), (8, 2693897251), (41, 525638488), (82, 262819244), (163, 132215816), (164, 131409622), (326, 66107908), (328, 65704811), (652, 33053954), (1304, 16526977), (6683, 3224776), (13366, 1612388), (26732, 806194), (53464, 403097)]