21195045

素因数分解:

$3^2\times 5^1\times {\mathrm{449}}^1\times {\mathrm{1049}}^1$

素因数の和:1509

約数の個数: 24

約数和(自身を含む): 36855000

約数和(自身を除く): 15659955

約数列:

[1, 3, 5, 9, 15, 45, 449, 1049, 1347, 2245, 3147, 4041, 5245, 6735, 9441, 15735, 20205, 47205, 471001, 1413003, 2355005, 4239009, 7065015, 21195045]

約数ペア:

[(1, 21195045), (3, 7065015), (5, 4239009), (9, 2355005), (15, 1413003), (45, 471001), (449, 47205), (1049, 20205), (1347, 15735), (2245, 9441), (3147, 6735), (4041, 5245)]