21487354

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{659}}^1$

素因数の和:822

約数の個数: 32

約数和(自身を含む): 39346560

約数和(自身を除く): 17859206

約数列:

[1, 2, 7, 14, 17, 34, 119, 137, 238, 274, 659, 959, 1318, 1918, 2329, 4613, 4658, 9226, 11203, 16303, 22406, 32606, 78421, 90283, 156842, 180566, 631981, 1263962, 1534811, 3069622, 10743677, 21487354]

約数ペア:

[(1, 21487354), (2, 10743677), (7, 3069622), (14, 1534811), (17, 1263962), (34, 631981), (119, 180566), (137, 156842), (238, 90283), (274, 78421), (659, 32606), (959, 22406), (1318, 16303), (1918, 11203), (2329, 9226), (4613, 4658)]