20842696

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^2\times {\mathrm{1031}}^1$

素因数の和:1082

約数の個数: 48

約数和(自身を含む): 47183040

約数和(自身を除く): 26340344

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 76, 133, 152, 266, 361, 532, 722, 1031, 1064, 1444, 2062, 2527, 2888, 4124, 5054, 7217, 8248, 10108, 14434, 19589, 20216, 28868, 39178, 57736, 78356, 137123, 156712, 274246, 372191, 548492, 744382, 1096984, 1488764, 2605337, 2977528, 5210674, 10421348, 20842696]

約数ペア:

[(1, 20842696), (2, 10421348), (4, 5210674), (7, 2977528), (8, 2605337), (14, 1488764), (19, 1096984), (28, 744382), (38, 548492), (56, 372191), (76, 274246), (133, 156712), (152, 137123), (266, 78356), (361, 57736), (532, 39178), (722, 28868), (1031, 20216), (1064, 19589), (1444, 14434), (2062, 10108), (2527, 8248), (2888, 7217), (4124, 5054)]