21278625

素因数分解:

$3^1\times 5^3\times {\mathrm{179}}^1\times {\mathrm{317}}^1$

素因数の和:514

約数の個数: 32

約数和(自身を含む): 35717760

約数和(自身を除く): 14439135

約数列:

[1, 3, 5, 15, 25, 75, 125, 179, 317, 375, 537, 895, 951, 1585, 2685, 4475, 4755, 7925, 13425, 22375, 23775, 39625, 56743, 67125, 118875, 170229, 283715, 851145, 1418575, 4255725, 7092875, 21278625]

約数ペア:

[(1, 21278625), (3, 7092875), (5, 4255725), (15, 1418575), (25, 851145), (75, 283715), (125, 170229), (179, 118875), (317, 67125), (375, 56743), (537, 39625), (895, 23775), (951, 22375), (1585, 13425), (2685, 7925), (4475, 4755)]