21967640

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{14843}}^1$

素因数の和:14891

約数の個数: 32

約数和(自身を含む): 50766480

約数和(自身を除く): 28798840

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 14843, 29686, 59372, 74215, 118744, 148430, 296860, 549191, 593720, 1098382, 2196764, 2745955, 4393528, 5491910, 10983820, 21967640]

約数ペア:

[(1, 21967640), (2, 10983820), (4, 5491910), (5, 4393528), (8, 2745955), (10, 2196764), (20, 1098382), (37, 593720), (40, 549191), (74, 296860), (148, 148430), (185, 118744), (296, 74215), (370, 59372), (740, 29686), (1480, 14843)]