20851005

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{349}}^1\times {\mathrm{569}}^1$

素因数の和:933

約数の個数: 32

約数和(自身を含む): 38304000

約数和(自身を除く): 17452995

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 349, 569, 1047, 1707, 1745, 2443, 2845, 3983, 5235, 7329, 8535, 11949, 12215, 19915, 36645, 59745, 198581, 595743, 992905, 1390067, 2978715, 4170201, 6950335, 20851005]

約数ペア:

[(1, 20851005), (3, 6950335), (5, 4170201), (7, 2978715), (15, 1390067), (21, 992905), (35, 595743), (105, 198581), (349, 59745), (569, 36645), (1047, 19915), (1707, 12215), (1745, 11949), (2443, 8535), (2845, 7329), (3983, 5235)]