19892481

素因数分解:

$3^1\times 7^2\times {\mathrm{131}}^1\times {\mathrm{1033}}^1$

素因数の和:1181

約数の個数: 24

約数和(自身を含む): 31119264

約数和(自身を除く): 11226783

約数列:

[1, 3, 7, 21, 49, 131, 147, 393, 917, 1033, 2751, 3099, 6419, 7231, 19257, 21693, 50617, 135323, 151851, 405969, 947261, 2841783, 6630827, 19892481]

約数ペア:

[(1, 19892481), (3, 6630827), (7, 2841783), (21, 947261), (49, 405969), (131, 151851), (147, 135323), (393, 50617), (917, 21693), (1033, 19257), (2751, 7231), (3099, 6419)]