20379009

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{23669}}^1$

素因数の和:23720

約数の個数: 16

約数和(自身を含む): 31812480

約数和(自身を除く): 11433471

約数列:

[1, 3, 7, 21, 41, 123, 287, 861, 23669, 71007, 165683, 497049, 970429, 2911287, 6793003, 20379009]

約数ペア:

[(1, 20379009), (3, 6793003), (7, 2911287), (21, 970429), (41, 497049), (123, 165683), (287, 71007), (861, 23669)]