21265890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{307}}^1\times {\mathrm{2309}}^1$

素因数の和:2626

約数の個数: 32

約数和(自身を含む): 51226560

約数和(自身を除く): 29960670

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 307, 614, 921, 1535, 1842, 2309, 3070, 4605, 4618, 6927, 9210, 11545, 13854, 23090, 34635, 69270, 708863, 1417726, 2126589, 3544315, 4253178, 7088630, 10632945, 21265890]

約数ペア:

[(1, 21265890), (2, 10632945), (3, 7088630), (5, 4253178), (6, 3544315), (10, 2126589), (15, 1417726), (30, 708863), (307, 69270), (614, 34635), (921, 23090), (1535, 13854), (1842, 11545), (2309, 9210), (3070, 6927), (4605, 4618)]