21108675

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1297}}^1$

素因数の和:1348

約数の個数: 48

約数和(自身を含む): 41203712

約数和(自身を除く): 20095037

約数列:

[1, 3, 5, 7, 15, 21, 25, 31, 35, 75, 93, 105, 155, 175, 217, 465, 525, 651, 775, 1085, 1297, 2325, 3255, 3891, 5425, 6485, 9079, 16275, 19455, 27237, 32425, 40207, 45395, 97275, 120621, 136185, 201035, 226975, 281449, 603105, 680925, 844347, 1005175, 1407245, 3015525, 4221735, 7036225, 21108675]

約数ペア:

[(1, 21108675), (3, 7036225), (5, 4221735), (7, 3015525), (15, 1407245), (21, 1005175), (25, 844347), (31, 680925), (35, 603105), (75, 281449), (93, 226975), (105, 201035), (155, 136185), (175, 120621), (217, 97275), (465, 45395), (525, 40207), (651, 32425), (775, 27237), (1085, 19455), (1297, 16275), (2325, 9079), (3255, 6485), (3891, 5425)]