21542060

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{3727}}^1$

素因数の和:3770

約数の個数: 36

約数和(自身を含む): 48068832

約数和(自身を除く): 26526772

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 289, 340, 578, 1156, 1445, 2890, 3727, 5780, 7454, 14908, 18635, 37270, 63359, 74540, 126718, 253436, 316795, 633590, 1077103, 1267180, 2154206, 4308412, 5385515, 10771030, 21542060]

約数ペア:

[(1, 21542060), (2, 10771030), (4, 5385515), (5, 4308412), (10, 2154206), (17, 1267180), (20, 1077103), (34, 633590), (68, 316795), (85, 253436), (170, 126718), (289, 74540), (340, 63359), (578, 37270), (1156, 18635), (1445, 14908), (2890, 7454), (3727, 5780)]