21308730

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{271}}^1\times {\mathrm{2621}}^1$

素因数の和:2902

約数の個数: 32

約数和(自身を含む): 51349248

約数和(自身を除く): 30040518

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 271, 542, 813, 1355, 1626, 2621, 2710, 4065, 5242, 7863, 8130, 13105, 15726, 26210, 39315, 78630, 710291, 1420582, 2130873, 3551455, 4261746, 7102910, 10654365, 21308730]

約数ペア:

[(1, 21308730), (2, 10654365), (3, 7102910), (5, 4261746), (6, 3551455), (10, 2130873), (15, 1420582), (30, 710291), (271, 78630), (542, 39315), (813, 26210), (1355, 15726), (1626, 13105), (2621, 8130), (2710, 7863), (4065, 5242)]