19928925

素因数分解:

$3^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{3851}}^1$

素因数の和:3890

約数の個数: 36

約数和(自身を含む): 37256544

約数和(自身を除く): 17327619

約数列:

[1, 3, 5, 9, 15, 23, 25, 45, 69, 75, 115, 207, 225, 345, 575, 1035, 1725, 3851, 5175, 11553, 19255, 34659, 57765, 88573, 96275, 173295, 265719, 288825, 442865, 797157, 866475, 1328595, 2214325, 3985785, 6642975, 19928925]

約数ペア:

[(1, 19928925), (3, 6642975), (5, 3985785), (9, 2214325), (15, 1328595), (23, 866475), (25, 797157), (45, 442865), (69, 288825), (75, 265719), (115, 173295), (207, 96275), (225, 88573), (345, 57765), (575, 34659), (1035, 19255), (1725, 11553), (3851, 5175)]