18240988

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{389}}^1\times {\mathrm{617}}^1$

素因数の和:1029

約数の個数: 24

約数和(自身を含む): 33742800

約数和(自身を除く): 15501812

約数列:

[1, 2, 4, 19, 38, 76, 389, 617, 778, 1234, 1556, 2468, 7391, 11723, 14782, 23446, 29564, 46892, 240013, 480026, 960052, 4560247, 9120494, 18240988]

約数ペア:

[(1, 18240988), (2, 9120494), (4, 4560247), (19, 960052), (38, 480026), (76, 240013), (389, 46892), (617, 29564), (778, 23446), (1234, 14782), (1556, 11723), (2468, 7391)]