21956193

素因数分解:

$3^2\times 7^1\times {\mathrm{149}}^1\times {\mathrm{2339}}^1$

素因数の和:2501

約数の個数: 24

約数和(自身を含む): 36504000

約数和(自身を除く): 14547807

約数列:

[1, 3, 7, 9, 21, 63, 149, 447, 1043, 1341, 2339, 3129, 7017, 9387, 16373, 21051, 49119, 147357, 348511, 1045533, 2439577, 3136599, 7318731, 21956193]

約数ペア:

[(1, 21956193), (3, 7318731), (7, 3136599), (9, 2439577), (21, 1045533), (63, 348511), (149, 147357), (447, 49119), (1043, 21051), (1341, 16373), (2339, 9387), (3129, 7017)]