21160797

素因数分解:

$3^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{3511}}^1$

素因数の和:3569

約数の個数: 24

約数和(自身を含む): 33630912

約数和(自身を除く): 12470115

約数列:

[1, 3, 7, 21, 41, 49, 123, 147, 287, 861, 2009, 3511, 6027, 10533, 24577, 73731, 143951, 172039, 431853, 516117, 1007657, 3022971, 7053599, 21160797]

約数ペア:

[(1, 21160797), (3, 7053599), (7, 3022971), (21, 1007657), (41, 516117), (49, 431853), (123, 172039), (147, 143951), (287, 73731), (861, 24577), (2009, 10533), (3511, 6027)]