19953645

素因数分解:

$3^1\times 5^1\times {\mathrm{163}}^1\times {\mathrm{8161}}^1$

素因数の和:8332

約数の個数: 16

約数和(自身を含む): 32125632

約数和(自身を除く): 12171987

約数列:

[1, 3, 5, 15, 163, 489, 815, 2445, 8161, 24483, 40805, 122415, 1330243, 3990729, 6651215, 19953645]

約数ペア:

[(1, 19953645), (3, 6651215), (5, 3990729), (15, 1330243), (163, 122415), (489, 40805), (815, 24483), (2445, 8161)]