21041272

素因数分解:

$2^3\times 7^1\times {\mathrm{401}}^1\times {\mathrm{937}}^1$

素因数の和:1351

約数の個数: 32

約数和(自身を含む): 45249120

約数和(自身を除く): 24207848

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 401, 802, 937, 1604, 1874, 2807, 3208, 3748, 5614, 6559, 7496, 11228, 13118, 22456, 26236, 52472, 375737, 751474, 1502948, 2630159, 3005896, 5260318, 10520636, 21041272]

約数ペア:

[(1, 21041272), (2, 10520636), (4, 5260318), (7, 3005896), (8, 2630159), (14, 1502948), (28, 751474), (56, 375737), (401, 52472), (802, 26236), (937, 22456), (1604, 13118), (1874, 11228), (2807, 7496), (3208, 6559), (3748, 5614)]