978171369

素因数分解:

$3^1\times 7^2\times {\mathrm{137}}^1\times {\mathrm{48571}}^1$

素因数の和:48725

約数の個数: 24

約数和(自身を含む): 1528269408

約数和(自身を除く): 550098039

約数列:

[1, 3, 7, 21, 49, 137, 147, 411, 959, 2877, 6713, 20139, 48571, 145713, 339997, 1019991, 2379979, 6654227, 7139937, 19962681, 46579589, 139738767, 326057123, 978171369]

約数ペア:

[(1, 978171369), (3, 326057123), (7, 139738767), (21, 46579589), (49, 19962681), (137, 7139937), (147, 6654227), (411, 2379979), (959, 1019991), (2877, 339997), (6713, 145713), (20139, 48571)]