21975020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{57829}}^1$

素因数の和:57857

約数の個数: 24

約数和(自身を含む): 48577200

約数和(自身を除く): 26602180

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 57829, 115658, 231316, 289145, 578290, 1098751, 1156580, 2197502, 4395004, 5493755, 10987510, 21975020]

約数ペア:

[(1, 21975020), (2, 10987510), (4, 5493755), (5, 4395004), (10, 2197502), (19, 1156580), (20, 1098751), (38, 578290), (76, 289145), (95, 231316), (190, 115658), (380, 57829)]