209915066

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{151}}^1\times {\mathrm{643}}^1$

素因数の和:866

約数の個数: 32

約数和(自身を含む): 338300928

約数和(自身を除く): 128385862

約数列:

[1, 2, 23, 46, 47, 94, 151, 302, 643, 1081, 1286, 2162, 3473, 6946, 7097, 14194, 14789, 29578, 30221, 60442, 97093, 163231, 194186, 326462, 695083, 1390166, 2233139, 4466278, 4563371, 9126742, 104957533, 209915066]

約数ペア:

[(1, 209915066), (2, 104957533), (23, 9126742), (46, 4563371), (47, 4466278), (94, 2233139), (151, 1390166), (302, 695083), (643, 326462), (1081, 194186), (1286, 163231), (2162, 97093), (3473, 60442), (6946, 30221), (7097, 29578), (14194, 14789)]