20543745

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{569}}^1$

素因数の和:689

約数の個数: 32

約数和(自身を含む): 34473600

約数和(自身を除く): 13929855

約数列:

[1, 3, 5, 15, 29, 83, 87, 145, 249, 415, 435, 569, 1245, 1707, 2407, 2845, 7221, 8535, 12035, 16501, 36105, 47227, 49503, 82505, 141681, 236135, 247515, 708405, 1369583, 4108749, 6847915, 20543745]

約数ペア:

[(1, 20543745), (3, 6847915), (5, 4108749), (15, 1369583), (29, 708405), (83, 247515), (87, 236135), (145, 141681), (249, 82505), (415, 49503), (435, 47227), (569, 36105), (1245, 16501), (1707, 12035), (2407, 8535), (2845, 7221)]