21337125

素因数分解:

$3^1\times 5^3\times {\mathrm{17}}^1\times {\mathrm{3347}}^1$

素因数の和:3382

約数の個数: 32

約数和(自身を含む): 37604736

約数和(自身を除く): 16267611

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 125, 255, 375, 425, 1275, 2125, 3347, 6375, 10041, 16735, 50205, 56899, 83675, 170697, 251025, 284495, 418375, 853485, 1255125, 1422475, 4267425, 7112375, 21337125]

約数ペア:

[(1, 21337125), (3, 7112375), (5, 4267425), (15, 1422475), (17, 1255125), (25, 853485), (51, 418375), (75, 284495), (85, 251025), (125, 170697), (255, 83675), (375, 56899), (425, 50205), (1275, 16735), (2125, 10041), (3347, 6375)]