19657525

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{2011}}^1$

素因数の和:2061

約数の個数: 24

約数和(自身を含む): 26944704

約数和(自身を除く): 7287179

約数列:

[1, 5, 17, 23, 25, 85, 115, 391, 425, 575, 1955, 2011, 9775, 10055, 34187, 46253, 50275, 170935, 231265, 786301, 854675, 1156325, 3931505, 19657525]

約数ペア:

[(1, 19657525), (5, 3931505), (17, 1156325), (23, 854675), (25, 786301), (85, 231265), (115, 170935), (391, 50275), (425, 46253), (575, 34187), (1955, 10055), (2011, 9775)]