20963285

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{139}}^2$

素因数の和:321

約数の個数: 24

約数和(自身を含む): 29892096

約数和(自身を除く): 8928811

約数列:

[1, 5, 7, 31, 35, 139, 155, 217, 695, 973, 1085, 4309, 4865, 19321, 21545, 30163, 96605, 135247, 150815, 598951, 676235, 2994755, 4192657, 20963285]

約数ペア:

[(1, 20963285), (5, 4192657), (7, 2994755), (31, 676235), (35, 598951), (139, 150815), (155, 135247), (217, 96605), (695, 30163), (973, 21545), (1085, 19321), (4309, 4865)]