20447574

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{6857}}^1$

素因数の和:6940

約数の個数: 32

約数和(自身を含む): 47402496

約数和(自身を除く): 26954922

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 71, 142, 213, 426, 497, 994, 1491, 2982, 6857, 13714, 20571, 41142, 47999, 95998, 143997, 287994, 486847, 973694, 1460541, 2921082, 3407929, 6815858, 10223787, 20447574]

約数ペア:

[(1, 20447574), (2, 10223787), (3, 6815858), (6, 3407929), (7, 2921082), (14, 1460541), (21, 973694), (42, 486847), (71, 287994), (142, 143997), (213, 95998), (426, 47999), (497, 41142), (994, 20571), (1491, 13714), (2982, 6857)]