21235455

素因数分解:

$3^2\times 5^1\times {\mathrm{449}}^1\times {\mathrm{1051}}^1$

素因数の和:1511

約数の個数: 24

約数和(自身を含む): 36925200

約数和(自身を除く): 15689745

約数列:

[1, 3, 5, 9, 15, 45, 449, 1051, 1347, 2245, 3153, 4041, 5255, 6735, 9459, 15765, 20205, 47295, 471899, 1415697, 2359495, 4247091, 7078485, 21235455]

約数ペア:

[(1, 21235455), (3, 7078485), (5, 4247091), (9, 2359495), (15, 1415697), (45, 471899), (449, 47295), (1051, 20205), (1347, 15765), (2245, 9459), (3153, 6735), (4041, 5255)]