21555108

素因数分解:

$2^2\times 3^2\times {\mathrm{173}}^1\times {\mathrm{3461}}^1$

素因数の和:3644

約数の個数: 36

約数和(自身を含む): 54817308

約数和(自身を除く): 33262200

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 173, 346, 519, 692, 1038, 1557, 2076, 3114, 3461, 6228, 6922, 10383, 13844, 20766, 31149, 41532, 62298, 124596, 598753, 1197506, 1796259, 2395012, 3592518, 5388777, 7185036, 10777554, 21555108]

約数ペア:

[(1, 21555108), (2, 10777554), (3, 7185036), (4, 5388777), (6, 3592518), (9, 2395012), (12, 1796259), (18, 1197506), (36, 598753), (173, 124596), (346, 62298), (519, 41532), (692, 31149), (1038, 20766), (1557, 13844), (2076, 10383), (3114, 6922), (3461, 6228)]