78787989

素因数分解:

$3^2\times 7^1\times {\mathrm{1031}}^1\times {\mathrm{1213}}^1$

素因数の和:2257

約数の個数: 24

約数和(自身を含む): 130296192

約数和(自身を除く): 51508203

約数列:

[1, 3, 7, 9, 21, 63, 1031, 1213, 3093, 3639, 7217, 8491, 9279, 10917, 21651, 25473, 64953, 76419, 1250603, 3751809, 8754221, 11255427, 26262663, 78787989]

約数ペア:

[(1, 78787989), (3, 26262663), (7, 11255427), (9, 8754221), (21, 3751809), (63, 1250603), (1031, 76419), (1213, 64953), (3093, 25473), (3639, 21651), (7217, 10917), (8491, 9279)]