20747752

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{373}}^1\times {\mathrm{409}}^1$

素因数の和:805

約数の個数: 32

約数和(自身を含む): 41401800

約数和(自身を除く): 20654048

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 373, 409, 746, 818, 1492, 1636, 2984, 3272, 6341, 6953, 12682, 13906, 25364, 27812, 50728, 55624, 152557, 305114, 610228, 1220456, 2593469, 5186938, 10373876, 20747752]

約数ペア:

[(1, 20747752), (2, 10373876), (4, 5186938), (8, 2593469), (17, 1220456), (34, 610228), (68, 305114), (136, 152557), (373, 55624), (409, 50728), (746, 27812), (818, 25364), (1492, 13906), (1636, 12682), (2984, 6953), (3272, 6341)]