21312515

素因数分解:

$5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{6029}}^1$

素因数の和:6142

約数の個数: 16

約数和(自身を含む): 29522880

約数和(自身を除く): 8210365

約数列:

[1, 5, 7, 35, 101, 505, 707, 3535, 6029, 30145, 42203, 211015, 608929, 3044645, 4262503, 21312515]

約数ペア:

[(1, 21312515), (5, 4262503), (7, 3044645), (35, 608929), (101, 211015), (505, 42203), (707, 30145), (3535, 6029)]