21738130

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{70123}}^1$

素因数の和:70161

約数の個数: 16

約数和(自身を含む): 40391424

約数和(自身を除く): 18653294

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 70123, 140246, 350615, 701230, 2173813, 4347626, 10869065, 21738130]

約数ペア:

[(1, 21738130), (2, 10869065), (5, 4347626), (10, 2173813), (31, 701230), (62, 350615), (155, 140246), (310, 70123)]