21490798

素因数分解:

$2^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{1231}}^1$

素因数の和:1312

約数の個数: 32

約数和(自身を含む): 39029760

約数和(自身を除く): 17538962

約数列:

[1, 2, 7, 14, 29, 43, 58, 86, 203, 301, 406, 602, 1231, 1247, 2462, 2494, 8617, 8729, 17234, 17458, 35699, 52933, 71398, 105866, 249893, 370531, 499786, 741062, 1535057, 3070114, 10745399, 21490798]

約数ペア:

[(1, 21490798), (2, 10745399), (7, 3070114), (14, 1535057), (29, 741062), (43, 499786), (58, 370531), (86, 249893), (203, 105866), (301, 71398), (406, 52933), (602, 35699), (1231, 17458), (1247, 17234), (2462, 8729), (2494, 8617)]