20423079

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{1031}}^1$

素因数の和:1139

約数の個数: 24

約数和(自身を含む): 30910464

約数和(自身を除く): 10487385

約数列:

[1, 3, 9, 31, 71, 93, 213, 279, 639, 1031, 2201, 3093, 6603, 9279, 19809, 31961, 73201, 95883, 219603, 287649, 658809, 2269231, 6807693, 20423079]

約数ペア:

[(1, 20423079), (3, 6807693), (9, 2269231), (31, 658809), (71, 287649), (93, 219603), (213, 95883), (279, 73201), (639, 31961), (1031, 19809), (2201, 9279), (3093, 6603)]