90212787

素因数分解:

$3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{30467}}^1$

素因数の和:30527

約数の個数: 24

約数和(自身を含む): 152096256

約数和(自身を除く): 61883469

約数列:

[1, 3, 7, 9, 21, 47, 63, 141, 329, 423, 987, 2961, 30467, 91401, 213269, 274203, 639807, 1431949, 1919421, 4295847, 10023643, 12887541, 30070929, 90212787]

約数ペア:

[(1, 90212787), (3, 30070929), (7, 12887541), (9, 10023643), (21, 4295847), (47, 1919421), (63, 1431949), (141, 639807), (329, 274203), (423, 213269), (987, 91401), (2961, 30467)]