21272492

素因数分解:

$2^2\times {\mathrm{73}}^1\times {\mathrm{263}}^1\times {\mathrm{277}}^1$

素因数の和:617

約数の個数: 24

約数和(自身を含む): 38017056

約数和(自身を除く): 16744564

約数列:

[1, 2, 4, 73, 146, 263, 277, 292, 526, 554, 1052, 1108, 19199, 20221, 38398, 40442, 72851, 76796, 80884, 145702, 291404, 5318123, 10636246, 21272492]

約数ペア:

[(1, 21272492), (2, 10636246), (4, 5318123), (73, 291404), (146, 145702), (263, 80884), (277, 76796), (292, 72851), (526, 40442), (554, 38398), (1052, 20221), (1108, 19199)]