20973525

素因数分解:

$3^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{9643}}^1$

素因数の和:9685

約数の個数: 24

約数和(自身を含む): 35875680

約数和(自身を除く): 14902155

約数列:

[1, 3, 5, 15, 25, 29, 75, 87, 145, 435, 725, 2175, 9643, 28929, 48215, 144645, 241075, 279647, 723225, 838941, 1398235, 4194705, 6991175, 20973525]

約数ペア:

[(1, 20973525), (3, 6991175), (5, 4194705), (15, 1398235), (25, 838941), (29, 723225), (75, 279647), (87, 241075), (145, 144645), (435, 48215), (725, 28929), (2175, 9643)]