20999516

素因数分解:

$2^2\times {\mathrm{59}}^1\times {\mathrm{101}}^1\times {\mathrm{881}}^1$

素因数の和:1045

約数の個数: 24

約数和(自身を含む): 37784880

約数和(自身を除く): 16785364

約数列:

[1, 2, 4, 59, 101, 118, 202, 236, 404, 881, 1762, 3524, 5959, 11918, 23836, 51979, 88981, 103958, 177962, 207916, 355924, 5249879, 10499758, 20999516]

約数ペア:

[(1, 20999516), (2, 10499758), (4, 5249879), (59, 355924), (101, 207916), (118, 177962), (202, 103958), (236, 88981), (404, 51979), (881, 23836), (1762, 11918), (3524, 5959)]