251671539

素因数分解:

$3^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{307}}^1\times {\mathrm{379}}^1$

素因数の和:799

約数の個数: 32

約数和(自身を含む): 389509120

約数和(自身を除く): 137837581

約数列:

[1, 3, 7, 21, 103, 307, 309, 379, 721, 921, 1137, 2149, 2163, 2653, 6447, 7959, 31621, 39037, 94863, 116353, 117111, 221347, 273259, 349059, 664041, 814471, 819777, 2443413, 11984359, 35953077, 83890513, 251671539]

約数ペア:

[(1, 251671539), (3, 83890513), (7, 35953077), (21, 11984359), (103, 2443413), (307, 819777), (309, 814471), (379, 664041), (721, 349059), (921, 273259), (1137, 221347), (2149, 117111), (2163, 116353), (2653, 94863), (6447, 39037), (7959, 31621)]