20986564

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{461}}^1\times {\mathrm{599}}^1$

素因数の和:1083

約数の個数: 24

約数和(自身を含む): 38808000

約数和(自身を除く): 17821436

約数列:

[1, 2, 4, 19, 38, 76, 461, 599, 922, 1198, 1844, 2396, 8759, 11381, 17518, 22762, 35036, 45524, 276139, 552278, 1104556, 5246641, 10493282, 20986564]

約数ペア:

[(1, 20986564), (2, 10493282), (4, 5246641), (19, 1104556), (38, 552278), (76, 276139), (461, 45524), (599, 35036), (922, 22762), (1198, 17518), (1844, 11381), (2396, 8759)]