290778831

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{242923}}^1$

素因数の和:242955

約数の個数: 24

約数和(自身を含む): 505281920

約数和(自身を除く): 214503089

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197, 242923, 728769, 1700461, 2186307, 4615537, 5101383, 13846611, 15304149, 32308759, 41539833, 96926277, 290778831]

約数ペア:

[(1, 290778831), (3, 96926277), (7, 41539833), (9, 32308759), (19, 15304149), (21, 13846611), (57, 5101383), (63, 4615537), (133, 2186307), (171, 1700461), (399, 728769), (1197, 242923)]