213091856

素因数分解:

$2^4\times {\mathrm{163}}^1\times {\mathrm{81707}}^1$

素因数の和:81878

約数の個数: 20

約数和(自身を含む): 415403472

約数和(自身を除く): 202311616

約数列:

[1, 2, 4, 8, 16, 163, 326, 652, 1304, 2608, 81707, 163414, 326828, 653656, 1307312, 13318241, 26636482, 53272964, 106545928, 213091856]

約数ペア:

[(1, 213091856), (2, 106545928), (4, 53272964), (8, 26636482), (16, 13318241), (163, 1307312), (326, 653656), (652, 326828), (1304, 163414), (2608, 81707)]