18737145

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{3499}}^1$

素因数の和:3534

約数の個数: 48

約数和(自身を含む): 39312000

約数和(自身を除く): 20574855

約数列:

[1, 3, 5, 7, 9, 15, 17, 21, 35, 45, 51, 63, 85, 105, 119, 153, 255, 315, 357, 595, 765, 1071, 1785, 3499, 5355, 10497, 17495, 24493, 31491, 52485, 59483, 73479, 122465, 157455, 178449, 220437, 297415, 367395, 416381, 535347, 892245, 1102185, 1249143, 2081905, 2676735, 3747429, 6245715, 18737145]

約数ペア:

[(1, 18737145), (3, 6245715), (5, 3747429), (7, 2676735), (9, 2081905), (15, 1249143), (17, 1102185), (21, 892245), (35, 535347), (45, 416381), (51, 367395), (63, 297415), (85, 220437), (105, 178449), (119, 157455), (153, 122465), (255, 73479), (315, 59483), (357, 52485), (595, 31491), (765, 24493), (1071, 17495), (1785, 10497), (3499, 5355)]