639045

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1291}}^1$

素因数の和:1313

約数の個数: 24

約数和(自身を含む): 1209312

約数和(自身を除く): 570267

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 165, 495, 1291, 3873, 6455, 11619, 14201, 19365, 42603, 58095, 71005, 127809, 213015, 639045]

約数ペア:

[(1, 639045), (3, 213015), (5, 127809), (9, 71005), (11, 58095), (15, 42603), (33, 19365), (45, 14201), (55, 11619), (99, 6455), (165, 3873), (495, 1291)]