20578719

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{33791}}^1$

素因数の和:33830

約数の個数: 16

約数和(自身を含む): 32440320

約数和(自身を除く): 11861601

約数列:

[1, 3, 7, 21, 29, 87, 203, 609, 33791, 101373, 236537, 709611, 979939, 2939817, 6859573, 20578719]

約数ペア:

[(1, 20578719), (3, 6859573), (7, 2939817), (21, 979939), (29, 709611), (87, 236537), (203, 101373), (609, 33791)]