66728618

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{21821}}^1$

素因数の和:21973

約数の個数: 16

約数和(自身を含む): 109982880

約数和(自身を除く): 43254262

約数列:

[1, 2, 11, 22, 139, 278, 1529, 3058, 21821, 43642, 240031, 480062, 3033119, 6066238, 33364309, 66728618]

約数ペア:

[(1, 66728618), (2, 33364309), (11, 6066238), (22, 3033119), (139, 480062), (278, 240031), (1529, 43642), (3058, 21821)]