18686836

素因数分解:

$2^2\times 7^2\times {\mathrm{67}}^1\times {\mathrm{1423}}^1$

素因数の和:1508

約数の個数: 36

約数和(自身を含む): 38635968

約数和(自身を除く): 19949132

約数列:

[1, 2, 4, 7, 14, 28, 49, 67, 98, 134, 196, 268, 469, 938, 1423, 1876, 2846, 3283, 5692, 6566, 9961, 13132, 19922, 39844, 69727, 95341, 139454, 190682, 278908, 381364, 667387, 1334774, 2669548, 4671709, 9343418, 18686836]

約数ペア:

[(1, 18686836), (2, 9343418), (4, 4671709), (7, 2669548), (14, 1334774), (28, 667387), (49, 381364), (67, 278908), (98, 190682), (134, 139454), (196, 95341), (268, 69727), (469, 39844), (938, 19922), (1423, 13132), (1876, 9961), (2846, 6566), (3283, 5692)]