20278278

素因数分解:

$2^1\times 3^2\times {\mathrm{31}}^1\times {\mathrm{36341}}^1$

素因数の和:36380

約数の個数: 24

約数和(自身を含む): 45354816

約数和(自身を除く): 25076538

約数列:

[1, 2, 3, 6, 9, 18, 31, 62, 93, 186, 279, 558, 36341, 72682, 109023, 218046, 327069, 654138, 1126571, 2253142, 3379713, 6759426, 10139139, 20278278]

約数ペア:

[(1, 20278278), (2, 10139139), (3, 6759426), (6, 3379713), (9, 2253142), (18, 1126571), (31, 654138), (62, 327069), (93, 218046), (186, 109023), (279, 72682), (558, 36341)]