213149524

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{400657}}^1$

素因数の和:400687

約数の個数: 24

約数和(自身を含む): 448736960

約数和(自身を除く): 235587436

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 532, 400657, 801314, 1602628, 2804599, 5609198, 7612483, 11218396, 15224966, 30449932, 53287381, 106574762, 213149524]

約数ペア:

[(1, 213149524), (2, 106574762), (4, 53287381), (7, 30449932), (14, 15224966), (19, 11218396), (28, 7612483), (38, 5609198), (76, 2804599), (133, 1602628), (266, 801314), (532, 400657)]