20578085199

素因数分解:

$3^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{563}}^1\times {\mathrm{9511}}^1$

素因数の和:10148

約数の個数: 48

約数和(自身を含む): 34592024064

約数和(自身を除く): 14013938865

約数列:

[1, 3, 7, 9, 21, 61, 63, 183, 427, 549, 563, 1281, 1689, 3843, 3941, 5067, 9511, 11823, 28533, 34343, 35469, 66577, 85599, 103029, 199731, 240401, 309087, 580171, 599193, 721203, 1740513, 2163609, 4061197, 5221539, 5354693, 12183591, 16064079, 36550773, 37482851, 48192237, 112448553, 326636273, 337345659, 979908819, 2286453911, 2939726457, 6859361733, 20578085199]

約数ペア:

[(1, 20578085199), (3, 6859361733), (7, 2939726457), (9, 2286453911), (21, 979908819), (61, 337345659), (63, 326636273), (183, 112448553), (427, 48192237), (549, 37482851), (563, 36550773), (1281, 16064079), (1689, 12183591), (3843, 5354693), (3941, 5221539), (5067, 4061197), (9511, 2163609), (11823, 1740513), (28533, 721203), (34343, 599193), (35469, 580171), (66577, 309087), (85599, 240401), (103029, 199731)]