20975695

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{313}}^1\times {\mathrm{1031}}^1$

素因数の和:1362

約数の個数: 16

約数和(自身を含む): 27220032

約数和(自身を除く): 6244337

約数列:

[1, 5, 13, 65, 313, 1031, 1565, 4069, 5155, 13403, 20345, 67015, 322703, 1613515, 4195139, 20975695]

約数ペア:

[(1, 20975695), (5, 4195139), (13, 1613515), (65, 322703), (313, 67015), (1031, 20345), (1565, 13403), (4069, 5155)]