20178885

素因数分解:

$3^1\times 5^1\times {\mathrm{59}}^1\times {\mathrm{151}}^2$

素因数の和:369

約数の個数: 24

約数和(自身を含む): 33052320

約数和(自身を除く): 12873435

約数列:

[1, 3, 5, 15, 59, 151, 177, 295, 453, 755, 885, 2265, 8909, 22801, 26727, 44545, 68403, 114005, 133635, 342015, 1345259, 4035777, 6726295, 20178885]

約数ペア:

[(1, 20178885), (3, 6726295), (5, 4035777), (15, 1345259), (59, 342015), (151, 133635), (177, 114005), (295, 68403), (453, 44545), (755, 26727), (885, 22801), (2265, 8909)]