18789974

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{70639}}^1$

素因数の和:70667

約数の個数: 16

約数和(自身を含む): 33907200

約数和(自身を除く): 15117226

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 70639, 141278, 494473, 988946, 1342141, 2684282, 9394987, 18789974]

約数ペア:

[(1, 18789974), (2, 9394987), (7, 2684282), (14, 1342141), (19, 988946), (38, 494473), (133, 141278), (266, 70639)]