21747535

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{6521}}^1$

素因数の和:6578

約数の個数: 16

約数和(自身を含む): 28175040

約数和(自身を除く): 6427505

約数列:

[1, 5, 23, 29, 115, 145, 667, 3335, 6521, 32605, 149983, 189109, 749915, 945545, 4349507, 21747535]

約数ペア:

[(1, 21747535), (5, 4349507), (23, 945545), (29, 749915), (115, 189109), (145, 149983), (667, 32605), (3335, 6521)]