20920501

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{977}}^1$

素因数の和:1033

約数の個数: 24

約数和(自身を含む): 26758080

約数和(自身を除く): 5837579

約数列:

[1, 7, 19, 23, 49, 133, 161, 437, 931, 977, 1127, 3059, 6839, 18563, 21413, 22471, 47873, 129941, 157297, 426949, 909587, 1101079, 2988643, 20920501]

約数ペア:

[(1, 20920501), (7, 2988643), (19, 1101079), (23, 909587), (49, 426949), (133, 157297), (161, 129941), (437, 47873), (931, 22471), (977, 21413), (1127, 18563), (3059, 6839)]