18681712

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{8779}}^1$

素因数の和:8813

約数の個数: 40

約数和(自身を含む): 43548800

約数和(自身を除く): 24867088

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 56, 76, 112, 133, 152, 266, 304, 532, 1064, 2128, 8779, 17558, 35116, 61453, 70232, 122906, 140464, 166801, 245812, 333602, 491624, 667204, 983248, 1167607, 1334408, 2335214, 2668816, 4670428, 9340856, 18681712]

約数ペア:

[(1, 18681712), (2, 9340856), (4, 4670428), (7, 2668816), (8, 2335214), (14, 1334408), (16, 1167607), (19, 983248), (28, 667204), (38, 491624), (56, 333602), (76, 245812), (112, 166801), (133, 140464), (152, 122906), (266, 70232), (304, 61453), (532, 35116), (1064, 17558), (2128, 8779)]