21507117

素因数分解:

$3^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1\times {\mathrm{739}}^1$

素因数の和:940

約数の個数: 16

約数和(自身を含む): 29304000

約数和(自身を除く): 7796883

約数列:

[1, 3, 89, 109, 267, 327, 739, 2217, 9701, 29103, 65771, 80551, 197313, 241653, 7169039, 21507117]

約数ペア:

[(1, 21507117), (3, 7169039), (89, 241653), (109, 197313), (267, 80551), (327, 65771), (739, 29103), (2217, 9701)]