21960555

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{569}}^1$

素因数の和:691

約数の個数: 32

約数和(自身を含む): 36771840

約数和(自身を除く): 14811285

約数列:

[1, 3, 5, 15, 31, 83, 93, 155, 249, 415, 465, 569, 1245, 1707, 2573, 2845, 7719, 8535, 12865, 17639, 38595, 47227, 52917, 88195, 141681, 236135, 264585, 708405, 1464037, 4392111, 7320185, 21960555]

約数ペア:

[(1, 21960555), (3, 7320185), (5, 4392111), (15, 1464037), (31, 708405), (83, 264585), (93, 236135), (155, 141681), (249, 88195), (415, 52917), (465, 47227), (569, 38595), (1245, 17639), (1707, 12865), (2573, 8535), (2845, 7719)]