18977771248

素因数分解:

$2^4\times {\mathrm{3221}}^1\times {\mathrm{368243}}^1$

素因数の和:371472

約数の個数: 20

約数和(自身を含む): 36780947208

約数和(自身を除く): 17803175960

約数列:

[1, 2, 4, 8, 16, 3221, 6442, 12884, 25768, 51536, 368243, 736486, 1472972, 2945944, 5891888, 1186110703, 2372221406, 4744442812, 9488885624, 18977771248]

約数ペア:

[(1, 18977771248), (2, 9488885624), (4, 4744442812), (8, 2372221406), (16, 1186110703), (3221, 5891888), (6442, 2945944), (12884, 1472972), (25768, 736486), (51536, 368243)]