18868894

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{379}}^1$

素因数の和:496

約数の個数: 32

約数和(自身を含む): 32394240

約数和(自身を除く): 13525346

約数列:

[1, 2, 11, 22, 31, 62, 73, 146, 341, 379, 682, 758, 803, 1606, 2263, 4169, 4526, 8338, 11749, 23498, 24893, 27667, 49786, 55334, 129239, 258478, 304337, 608674, 857677, 1715354, 9434447, 18868894]

約数ペア:

[(1, 18868894), (2, 9434447), (11, 1715354), (22, 857677), (31, 608674), (62, 304337), (73, 258478), (146, 129239), (341, 55334), (379, 49786), (682, 27667), (758, 24893), (803, 23498), (1606, 11749), (2263, 8338), (4169, 4526)]