20992738

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{419}}^1$

素因数の和:522

約数の個数: 32

約数和(自身を含む): 35562240

約数和(自身を除く): 14569502

約数列:

[1, 2, 13, 26, 41, 47, 82, 94, 419, 533, 611, 838, 1066, 1222, 1927, 3854, 5447, 10894, 17179, 19693, 25051, 34358, 39386, 50102, 223327, 256009, 446654, 512018, 807413, 1614826, 10496369, 20992738]

約数ペア:

[(1, 20992738), (2, 10496369), (13, 1614826), (26, 807413), (41, 512018), (47, 446654), (82, 256009), (94, 223327), (419, 50102), (533, 39386), (611, 34358), (838, 25051), (1066, 19693), (1222, 17179), (1927, 10894), (3854, 5447)]