20719345

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{173}}^1\times {\mathrm{1409}}^1$

素因数の和:1604

約数の個数: 16

約数和(自身を含む): 26496720

約数和(自身を除く): 5777375

約数列:

[1, 5, 17, 85, 173, 865, 1409, 2941, 7045, 14705, 23953, 119765, 243757, 1218785, 4143869, 20719345]

約数ペア:

[(1, 20719345), (5, 4143869), (17, 1218785), (85, 243757), (173, 119765), (865, 23953), (1409, 14705), (2941, 7045)]