20855601

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{397}}^1\times {\mathrm{449}}^1$

素因数の和:865

約数の個数: 24

約数和(自身を含む): 32596200

約数和(自身を除く): 11740599

約数列:

[1, 3, 9, 13, 39, 117, 397, 449, 1191, 1347, 3573, 4041, 5161, 5837, 15483, 17511, 46449, 52533, 178253, 534759, 1604277, 2317289, 6951867, 20855601]

約数ペア:

[(1, 20855601), (3, 6951867), (9, 2317289), (13, 1604277), (39, 534759), (117, 178253), (397, 52533), (449, 46449), (1191, 17511), (1347, 15483), (3573, 5837), (4041, 5161)]