20169855

素因数分解:

$3^2\times 5^1\times {\mathrm{439}}^1\times {\mathrm{1021}}^1$

素因数の和:1471

約数の個数: 24

約数和(自身を含む): 35075040

約数和(自身を除く): 14905185

約数列:

[1, 3, 5, 9, 15, 45, 439, 1021, 1317, 2195, 3063, 3951, 5105, 6585, 9189, 15315, 19755, 45945, 448219, 1344657, 2241095, 4033971, 6723285, 20169855]

約数ペア:

[(1, 20169855), (3, 6723285), (5, 4033971), (9, 2241095), (15, 1344657), (45, 448219), (439, 45945), (1021, 19755), (1317, 15315), (2195, 9189), (3063, 6585), (3951, 5105)]