211575

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1$

素因数の和:64

約数の個数: 48

約数和(自身を含む): 444416

約数和(自身を除く): 232841

約数列:

[1, 3, 5, 7, 13, 15, 21, 25, 31, 35, 39, 65, 75, 91, 93, 105, 155, 175, 195, 217, 273, 325, 403, 455, 465, 525, 651, 775, 975, 1085, 1209, 1365, 2015, 2275, 2325, 2821, 3255, 5425, 6045, 6825, 8463, 10075, 14105, 16275, 30225, 42315, 70525, 211575]

約数ペア:

[(1, 211575), (3, 70525), (5, 42315), (7, 30225), (13, 16275), (15, 14105), (21, 10075), (25, 8463), (31, 6825), (35, 6045), (39, 5425), (65, 3255), (75, 2821), (91, 2325), (93, 2275), (105, 2015), (155, 1365), (175, 1209), (195, 1085), (217, 975), (273, 775), (325, 651), (403, 525), (455, 465)]