19009328

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{1549}}^1$

素因数の和:1629

約数の個数: 40

約数和(自身を含む): 40362000

約数和(自身を除く): 21352672

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 59, 104, 118, 208, 236, 472, 767, 944, 1534, 1549, 3068, 3098, 6136, 6196, 12272, 12392, 20137, 24784, 40274, 80548, 91391, 161096, 182782, 322192, 365564, 731128, 1188083, 1462256, 2376166, 4752332, 9504664, 19009328]

約数ペア:

[(1, 19009328), (2, 9504664), (4, 4752332), (8, 2376166), (13, 1462256), (16, 1188083), (26, 731128), (52, 365564), (59, 322192), (104, 182782), (118, 161096), (208, 91391), (236, 80548), (472, 40274), (767, 24784), (944, 20137), (1534, 12392), (1549, 12272), (3068, 6196), (3098, 6136)]