20805855

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{10429}}^1$

素因数の和:10463

約数の個数: 32

約数和(自身を含む): 40051200

約数和(自身を除く): 19245345

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 57, 95, 105, 133, 285, 399, 665, 1995, 10429, 31287, 52145, 73003, 156435, 198151, 219009, 365015, 594453, 990755, 1095045, 1387057, 2972265, 4161171, 6935285, 20805855]

約数ペア:

[(1, 20805855), (3, 6935285), (5, 4161171), (7, 2972265), (15, 1387057), (19, 1095045), (21, 990755), (35, 594453), (57, 365015), (95, 219009), (105, 198151), (133, 156435), (285, 73003), (399, 52145), (665, 31287), (1995, 10429)]