21103235

素因数分解:

$5^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{1009}}^1$

素因数の和:1150

約数の個数: 16

約数和(自身を含む): 26179200

約数和(自身を除く): 5075965

約数列:

[1, 5, 47, 89, 235, 445, 1009, 4183, 5045, 20915, 47423, 89801, 237115, 449005, 4220647, 21103235]

約数ペア:

[(1, 21103235), (5, 4220647), (47, 449005), (89, 237115), (235, 89801), (445, 47423), (1009, 20915), (4183, 5045)]