20801703

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{89}}^1\times {\mathrm{461}}^1$

素因数の和:579

約数の個数: 24

約数和(自身を含む): 30436560

約数和(自身を除く): 9634857

約数列:

[1, 3, 13, 39, 89, 169, 267, 461, 507, 1157, 1383, 3471, 5993, 15041, 17979, 41029, 45123, 77909, 123087, 233727, 533377, 1600131, 6933901, 20801703]

約数ペア:

[(1, 20801703), (3, 6933901), (13, 1600131), (39, 533377), (89, 233727), (169, 123087), (267, 77909), (461, 45123), (507, 41029), (1157, 17979), (1383, 15041), (3471, 5993)]