20178938

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{227}}^1\times {\mathrm{263}}^1$

素因数の和:518

約数の個数: 24

約数和(自身を含む): 33045408

約数和(自身を除く): 12866470

約数列:

[1, 2, 13, 26, 169, 227, 263, 338, 454, 526, 2951, 3419, 5902, 6838, 38363, 44447, 59701, 76726, 88894, 119402, 776113, 1552226, 10089469, 20178938]

約数ペア:

[(1, 20178938), (2, 10089469), (13, 1552226), (26, 776113), (169, 119402), (227, 88894), (263, 76726), (338, 59701), (454, 44447), (526, 38363), (2951, 6838), (3419, 5902)]