21689090

素因数分解:

$2^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{46147}}^1$

素因数の和:46201

約数の個数: 16

約数和(自身を含む): 39871872

約数和(自身を除く): 18182782

約数列:

[1, 2, 5, 10, 47, 94, 235, 470, 46147, 92294, 230735, 461470, 2168909, 4337818, 10844545, 21689090]

約数ペア:

[(1, 21689090), (2, 10844545), (5, 4337818), (10, 2168909), (47, 461470), (94, 230735), (235, 92294), (470, 46147)]