21899590

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{1459}}^1$

素因数の和:1564

約数の個数: 32

約数和(自身を含む): 42048000

約数和(自身を除く): 20148410

約数列:

[1, 2, 5, 10, 19, 38, 79, 95, 158, 190, 395, 790, 1459, 1501, 2918, 3002, 7295, 7505, 14590, 15010, 27721, 55442, 115261, 138605, 230522, 277210, 576305, 1152610, 2189959, 4379918, 10949795, 21899590]

約数ペア:

[(1, 21899590), (2, 10949795), (5, 4379918), (10, 2189959), (19, 1152610), (38, 576305), (79, 277210), (95, 230522), (158, 138605), (190, 115261), (395, 55442), (790, 27721), (1459, 15010), (1501, 14590), (2918, 7505), (3002, 7295)]