21369796

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{17749}}^1$

素因数の和:17803

約数の個数: 24

約数和(自身を含む): 43736000

約数和(自身を除く): 22366204

約数列:

[1, 2, 4, 7, 14, 28, 43, 86, 172, 301, 602, 1204, 17749, 35498, 70996, 124243, 248486, 496972, 763207, 1526414, 3052828, 5342449, 10684898, 21369796]

約数ペア:

[(1, 21369796), (2, 10684898), (4, 5342449), (7, 3052828), (14, 1526414), (28, 763207), (43, 496972), (86, 248486), (172, 124243), (301, 70996), (602, 35498), (1204, 17749)]