20193561

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{269}}^1\times {\mathrm{439}}^1$

素因数の和:733

約数の個数: 24

約数和(自身を含む): 30888000

約数和(自身を除く): 10694439

約数列:

[1, 3, 9, 19, 57, 171, 269, 439, 807, 1317, 2421, 3951, 5111, 8341, 15333, 25023, 45999, 75069, 118091, 354273, 1062819, 2243729, 6731187, 20193561]

約数ペア:

[(1, 20193561), (3, 6731187), (9, 2243729), (19, 1062819), (57, 354273), (171, 118091), (269, 75069), (439, 45999), (807, 25023), (1317, 15333), (2421, 8341), (3951, 5111)]