21265832

素因数分解:

$2^3\times 7^1\times {\mathrm{401}}^1\times {\mathrm{947}}^1$

素因数の和:1361

約数の個数: 32

約数和(自身を含む): 45731520

約数和(自身を除く): 24465688

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 401, 802, 947, 1604, 1894, 2807, 3208, 3788, 5614, 6629, 7576, 11228, 13258, 22456, 26516, 53032, 379747, 759494, 1518988, 2658229, 3037976, 5316458, 10632916, 21265832]

約数ペア:

[(1, 21265832), (2, 10632916), (4, 5316458), (7, 3037976), (8, 2658229), (14, 1518988), (28, 759494), (56, 379747), (401, 53032), (802, 26516), (947, 22456), (1604, 13258), (1894, 11228), (2807, 7576), (3208, 6629), (3788, 5614)]