91990989

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{8819}}^1$

素因数の和:8905

約数の個数: 24

約数和(自身を含む): 142178400

約数和(自身を除く): 50187411

約数列:

[1, 3, 9, 19, 57, 61, 171, 183, 549, 1159, 3477, 8819, 10431, 26457, 79371, 167561, 502683, 537959, 1508049, 1613877, 4841631, 10221221, 30663663, 91990989]

約数ペア:

[(1, 91990989), (3, 30663663), (9, 10221221), (19, 4841631), (57, 1613877), (61, 1508049), (171, 537959), (183, 502683), (549, 167561), (1159, 79371), (3477, 26457), (8819, 10431)]