21110045

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{20201}}^1$

素因数の和:20236

約数の個数: 16

約数和(自身を含む): 29090880

約数和(自身を除く): 7980835

約数列:

[1, 5, 11, 19, 55, 95, 209, 1045, 20201, 101005, 222211, 383819, 1111055, 1919095, 4222009, 21110045]

約数ペア:

[(1, 21110045), (5, 4222009), (11, 1919095), (19, 1111055), (55, 383819), (95, 222211), (209, 101005), (1045, 20201)]