201980457

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{139393}}^1$

素因数の和:139429

約数の個数: 24

約数和(自身を含む): 347927424

約数和(自身を除く): 145946967

約数列:

[1, 3, 7, 9, 21, 23, 63, 69, 161, 207, 483, 1449, 139393, 418179, 975751, 1254537, 2927253, 3206039, 8781759, 9618117, 22442273, 28854351, 67326819, 201980457]

約数ペア:

[(1, 201980457), (3, 67326819), (7, 28854351), (9, 22442273), (21, 9618117), (23, 8781759), (63, 3206039), (69, 2927253), (161, 1254537), (207, 975751), (483, 418179), (1449, 139393)]