21743090

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{70139}}^1$

素因数の和:70177

約数の個数: 16

約数和(自身を含む): 40400640

約数和(自身を除く): 18657550

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 70139, 140278, 350695, 701390, 2174309, 4348618, 10871545, 21743090]

約数ペア:

[(1, 21743090), (2, 10871545), (5, 4348618), (10, 2174309), (31, 701390), (62, 350695), (155, 140278), (310, 70139)]