21273460

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{4813}}^1$

素因数の和:4852

約数の個数: 48

約数和(自身を含む): 50951376

約数和(自身を除く): 29677916

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 170, 221, 260, 340, 442, 884, 1105, 2210, 4420, 4813, 9626, 19252, 24065, 48130, 62569, 81821, 96260, 125138, 163642, 250276, 312845, 327284, 409105, 625690, 818210, 1063673, 1251380, 1636420, 2127346, 4254692, 5318365, 10636730, 21273460]

約数ペア:

[(1, 21273460), (2, 10636730), (4, 5318365), (5, 4254692), (10, 2127346), (13, 1636420), (17, 1251380), (20, 1063673), (26, 818210), (34, 625690), (52, 409105), (65, 327284), (68, 312845), (85, 250276), (130, 163642), (170, 125138), (221, 96260), (260, 81821), (340, 62569), (442, 48130), (884, 24065), (1105, 19252), (2210, 9626), (4420, 4813)]