21305845

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{22787}}^1$

素因数の和:22820

約数の個数: 16

約数和(自身を含む): 29533248

約数和(自身を除く): 8227403

約数列:

[1, 5, 11, 17, 55, 85, 187, 935, 22787, 113935, 250657, 387379, 1253285, 1936895, 4261169, 21305845]

約数ペア:

[(1, 21305845), (5, 4261169), (11, 1936895), (17, 1253285), (55, 387379), (85, 250657), (187, 113935), (935, 22787)]