258118511

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1\times {\mathrm{4057}}^1$

素因数の和:4274

約数の個数: 16

約数和(自身を含む): 301915200

約数和(自身を除く): 43796689

約数列:

[1, 7, 61, 149, 427, 1043, 4057, 9089, 28399, 63623, 247477, 604493, 1732339, 4231451, 36874073, 258118511]

約数ペア:

[(1, 258118511), (7, 36874073), (61, 4231451), (149, 1732339), (427, 604493), (1043, 247477), (4057, 63623), (9089, 28399)]