201214321

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{25873}}^1$

素因数の和:25992

約数の個数: 16

約数和(自身を含む): 253358208

約数和(自身を除く): 52143887

約数列:

[1, 7, 11, 77, 101, 707, 1111, 7777, 25873, 181111, 284603, 1992221, 2613173, 18292211, 28744903, 201214321]

約数ペア:

[(1, 201214321), (7, 28744903), (11, 18292211), (77, 2613173), (101, 1992221), (707, 284603), (1111, 181111), (7777, 25873)]