21820316

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{45841}}^1$

素因数の和:45869

約数の個数: 24

約数和(自身を含む): 46208736

約数和(自身を除く): 24388420

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 238, 476, 45841, 91682, 183364, 320887, 641774, 779297, 1283548, 1558594, 3117188, 5455079, 10910158, 21820316]

約数ペア:

[(1, 21820316), (2, 10910158), (4, 5455079), (7, 3117188), (14, 1558594), (17, 1283548), (28, 779297), (34, 641774), (68, 320887), (119, 183364), (238, 91682), (476, 45841)]