21461439968

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{177379}}^1$

素因数の和:177607

約数の個数: 48

約数和(自身を含む): 44699760000

約数和(自身を除く): 23238320032

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 76, 152, 199, 304, 398, 608, 796, 1592, 3184, 3781, 6368, 7562, 15124, 30248, 60496, 120992, 177379, 354758, 709516, 1419032, 2838064, 3370201, 5676128, 6740402, 13480804, 26961608, 35298421, 53923216, 70596842, 107846432, 141193684, 282387368, 564774736, 670669999, 1129549472, 1341339998, 2682679996, 5365359992, 10730719984, 21461439968]

約数ペア:

[(1, 21461439968), (2, 10730719984), (4, 5365359992), (8, 2682679996), (16, 1341339998), (19, 1129549472), (32, 670669999), (38, 564774736), (76, 282387368), (152, 141193684), (199, 107846432), (304, 70596842), (398, 53923216), (608, 35298421), (796, 26961608), (1592, 13480804), (3184, 6740402), (3781, 5676128), (6368, 3370201), (7562, 2838064), (15124, 1419032), (30248, 709516), (60496, 354758), (120992, 177379)]