213883821

素因数分解:

$3^4\times {\mathrm{89}}^1\times {\mathrm{29669}}^1$

素因数の和:29770

約数の個数: 20

約数和(自身を含む): 323106300

約数和(自身を除く): 109222479

約数列:

[1, 3, 9, 27, 81, 89, 267, 801, 2403, 7209, 29669, 89007, 267021, 801063, 2403189, 2640541, 7921623, 23764869, 71294607, 213883821]

約数ペア:

[(1, 213883821), (3, 71294607), (9, 23764869), (27, 7921623), (81, 2640541), (89, 2403189), (267, 801063), (801, 267021), (2403, 89007), (7209, 29669)]