245234521

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{113}}^1\times {\mathrm{137}}^1$

素因数の和:361

約数の個数: 32

約数和(自身を含む): 298027008

約数和(自身を除く): 52792487

約数列:

[1, 7, 31, 73, 113, 137, 217, 511, 791, 959, 2263, 3503, 4247, 8249, 10001, 15481, 15841, 24521, 29729, 57743, 70007, 108367, 255719, 310031, 479911, 1130113, 1790033, 2170217, 3359377, 7910791, 35033503, 245234521]

約数ペア:

[(1, 245234521), (7, 35033503), (31, 7910791), (73, 3359377), (113, 2170217), (137, 1790033), (217, 1130113), (511, 479911), (791, 310031), (959, 255719), (2263, 108367), (3503, 70007), (4247, 57743), (8249, 29729), (10001, 24521), (15481, 15841)]