20950389

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{1231}}^1$

素因数の和:1329

約数の個数: 24

約数和(自身を含む): 31775744

約数和(自身を除く): 10825355

約数列:

[1, 3, 9, 31, 61, 93, 183, 279, 549, 1231, 1891, 3693, 5673, 11079, 17019, 38161, 75091, 114483, 225273, 343449, 675819, 2327821, 6983463, 20950389]

約数ペア:

[(1, 20950389), (3, 6983463), (9, 2327821), (31, 675819), (61, 343449), (93, 225273), (183, 114483), (279, 75091), (549, 38161), (1231, 17019), (1891, 11079), (3693, 5673)]