20939625

素因数分解:

$3^2\times 5^3\times 7^1\times {\mathrm{2659}}^1$

素因数の和:2687

約数の個数: 48

約数和(自身を含む): 43155840

約数和(自身を除く): 22216215

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 63, 75, 105, 125, 175, 225, 315, 375, 525, 875, 1125, 1575, 2625, 2659, 7875, 7977, 13295, 18613, 23931, 39885, 55839, 66475, 93065, 119655, 167517, 199425, 279195, 332375, 465325, 598275, 837585, 997125, 1395975, 2326625, 2991375, 4187925, 6979875, 20939625]

約数ペア:

[(1, 20939625), (3, 6979875), (5, 4187925), (7, 2991375), (9, 2326625), (15, 1395975), (21, 997125), (25, 837585), (35, 598275), (45, 465325), (63, 332375), (75, 279195), (105, 199425), (125, 167517), (175, 119655), (225, 93065), (315, 66475), (375, 55839), (525, 39885), (875, 23931), (1125, 18613), (1575, 13295), (2625, 7977), (2659, 7875)]