21459070

素因数分解:

$2^1\times 5^1\times {\mathrm{1409}}^1\times {\mathrm{1523}}^1$

素因数の和:2939

約数の個数: 16

約数和(自身を含む): 38679120

約数和(自身を除く): 17220050

約数列:

[1, 2, 5, 10, 1409, 1523, 2818, 3046, 7045, 7615, 14090, 15230, 2145907, 4291814, 10729535, 21459070]

約数ペア:

[(1, 21459070), (2, 10729535), (5, 4291814), (10, 2145907), (1409, 15230), (1523, 14090), (2818, 7615), (3046, 7045)]