19991314

素因数分解:

$2^1\times 7^2\times {\mathrm{137}}^1\times {\mathrm{1489}}^1$

素因数の和:1642

約数の個数: 24

約数和(自身を含む): 35161020

約数和(自身を除く): 15169706

約数列:

[1, 2, 7, 14, 49, 98, 137, 274, 959, 1489, 1918, 2978, 6713, 10423, 13426, 20846, 72961, 145922, 203993, 407986, 1427951, 2855902, 9995657, 19991314]

約数ペア:

[(1, 19991314), (2, 9995657), (7, 2855902), (14, 1427951), (49, 407986), (98, 203993), (137, 145922), (274, 72961), (959, 20846), (1489, 13426), (1918, 10423), (2978, 6713)]