20637555

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{1459}}^1$

素因数の和:1531

約数の個数: 32

約数和(自身を含む): 35320320

約数和(自身を除く): 14682765

約数列:

[1, 3, 5, 15, 23, 41, 69, 115, 123, 205, 345, 615, 943, 1459, 2829, 4377, 4715, 7295, 14145, 21885, 33557, 59819, 100671, 167785, 179457, 299095, 503355, 897285, 1375837, 4127511, 6879185, 20637555]

約数ペア:

[(1, 20637555), (3, 6879185), (5, 4127511), (15, 1375837), (23, 897285), (41, 503355), (69, 299095), (115, 179457), (123, 167785), (205, 100671), (345, 59819), (615, 33557), (943, 21885), (1459, 14145), (2829, 7295), (4377, 4715)]