18331780

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53917}}^1$

素因数の和:53943

約数の個数: 24

約数和(自身を含む): 40762008

約数和(自身を除く): 22430228

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 53917, 107834, 215668, 269585, 539170, 916589, 1078340, 1833178, 3666356, 4582945, 9165890, 18331780]

約数ペア:

[(1, 18331780), (2, 9165890), (4, 4582945), (5, 3666356), (10, 1833178), (17, 1078340), (20, 916589), (34, 539170), (68, 269585), (85, 215668), (170, 107834), (340, 53917)]