251118

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{1993}}^1$

素因数の和:2008

約数の個数: 24

約数和(自身を含む): 622128

約数和(自身を除く): 371010

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 1993, 3986, 5979, 11958, 13951, 17937, 27902, 35874, 41853, 83706, 125559, 251118]

約数ペア:

[(1, 251118), (2, 125559), (3, 83706), (6, 41853), (7, 35874), (9, 27902), (14, 17937), (18, 13951), (21, 11958), (42, 5979), (63, 3986), (126, 1993)]