21649266

素因数分解:

$2^1\times 3^2\times {\mathrm{61}}^1\times {\mathrm{19717}}^1$

素因数の和:19786

約数の個数: 24

約数和(自身を含む): 47678124

約数和(自身を除く): 26028858

約数列:

[1, 2, 3, 6, 9, 18, 61, 122, 183, 366, 549, 1098, 19717, 39434, 59151, 118302, 177453, 354906, 1202737, 2405474, 3608211, 7216422, 10824633, 21649266]

約数ペア:

[(1, 21649266), (2, 10824633), (3, 7216422), (6, 3608211), (9, 2405474), (18, 1202737), (61, 354906), (122, 177453), (183, 118302), (366, 59151), (549, 39434), (1098, 19717)]