21736520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41801}}^1$

素因数の和:41825

約数の個数: 32

約数和(自身を含む): 52670520

約数和(自身を除く): 30934000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 41801, 83602, 167204, 209005, 334408, 418010, 543413, 836020, 1086826, 1672040, 2173652, 2717065, 4347304, 5434130, 10868260, 21736520]

約数ペア:

[(1, 21736520), (2, 10868260), (4, 5434130), (5, 4347304), (8, 2717065), (10, 2173652), (13, 1672040), (20, 1086826), (26, 836020), (40, 543413), (52, 418010), (65, 334408), (104, 209005), (130, 167204), (260, 83602), (520, 41801)]