11978284

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{397}}^2$

素因数の和:817

約数の個数: 18

約数和(自身を含む): 22120980

約数和(自身を除く): 10142696

約数列:

[1, 2, 4, 19, 38, 76, 397, 794, 1588, 7543, 15086, 30172, 157609, 315218, 630436, 2994571, 5989142, 11978284]

約数ペア:

[(1, 11978284), (2, 5989142), (4, 2994571), (19, 630436), (38, 315218), (76, 157609), (397, 30172), (794, 15086), (1588, 7543)]