21043875

素因数分解:

$3^1\times 5^3\times {\mathrm{17}}^1\times {\mathrm{3301}}^1$

素因数の和:3336

約数の個数: 32

約数和(自身を含む): 37088064

約数和(自身を除く): 16044189

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 125, 255, 375, 425, 1275, 2125, 3301, 6375, 9903, 16505, 49515, 56117, 82525, 168351, 247575, 280585, 412625, 841755, 1237875, 1402925, 4208775, 7014625, 21043875]

約数ペア:

[(1, 21043875), (3, 7014625), (5, 4208775), (15, 1402925), (17, 1237875), (25, 841755), (51, 412625), (75, 280585), (85, 247575), (125, 168351), (255, 82525), (375, 56117), (425, 49515), (1275, 16505), (2125, 9903), (3301, 6375)]