21812203

素因数分解:

$7^2\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{227}}^1$

素因数の和:331

約数の個数: 24

約数和(自身を含む): 26667792

約数和(自身を除く): 4855589

約数列:

[1, 7, 37, 49, 53, 227, 259, 371, 1589, 1813, 1961, 2597, 8399, 11123, 12031, 13727, 58793, 84217, 96089, 411551, 445147, 589519, 3116029, 21812203]

約数ペア:

[(1, 21812203), (7, 3116029), (37, 589519), (49, 445147), (53, 411551), (227, 96089), (259, 84217), (371, 58793), (1589, 13727), (1813, 12031), (1961, 11123), (2597, 8399)]