20753109

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{1993}}^1$

素因数の和:2101

約数の個数: 24

約数和(自身を含む): 32661720

約数和(自身を除く): 11908611

約数列:

[1, 3, 9, 13, 39, 89, 117, 267, 801, 1157, 1993, 3471, 5979, 10413, 17937, 25909, 77727, 177377, 233181, 532131, 1596393, 2305901, 6917703, 20753109]

約数ペア:

[(1, 20753109), (3, 6917703), (9, 2305901), (13, 1596393), (39, 532131), (89, 233181), (117, 177377), (267, 77727), (801, 25909), (1157, 17937), (1993, 10413), (3471, 5979)]