21267550

素因数分解:

$2^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{13721}}^1$

素因数の和:13764

約数の個数: 24

約数和(自身を含む): 40836672

約数和(自身を除く): 19569122

約数列:

[1, 2, 5, 10, 25, 31, 50, 62, 155, 310, 775, 1550, 13721, 27442, 68605, 137210, 343025, 425351, 686050, 850702, 2126755, 4253510, 10633775, 21267550]

約数ペア:

[(1, 21267550), (2, 10633775), (5, 4253510), (10, 2126755), (25, 850702), (31, 686050), (50, 425351), (62, 343025), (155, 137210), (310, 68605), (775, 27442), (1550, 13721)]