21281856

素因数分解:

$2^6\times 3^1\times {\mathrm{199}}^1\times {\mathrm{557}}^1$

素因数の和:771

約数の個数: 56

約数和(自身を含む): 56692800

約数和(自身を除く): 35410944

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 192, 199, 398, 557, 597, 796, 1114, 1194, 1592, 1671, 2228, 2388, 3184, 3342, 4456, 4776, 6368, 6684, 8912, 9552, 12736, 13368, 17824, 19104, 26736, 35648, 38208, 53472, 106944, 110843, 221686, 332529, 443372, 665058, 886744, 1330116, 1773488, 2660232, 3546976, 5320464, 7093952, 10640928, 21281856]

約数ペア:

[(1, 21281856), (2, 10640928), (3, 7093952), (4, 5320464), (6, 3546976), (8, 2660232), (12, 1773488), (16, 1330116), (24, 886744), (32, 665058), (48, 443372), (64, 332529), (96, 221686), (192, 110843), (199, 106944), (398, 53472), (557, 38208), (597, 35648), (796, 26736), (1114, 19104), (1194, 17824), (1592, 13368), (1671, 12736), (2228, 9552), (2388, 8912), (3184, 6684), (3342, 6368), (4456, 4776)]