21519570

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{19387}}^1$

素因数の和:19434

約数の個数: 32

約数和(自身を含む): 53045568

約数和(自身を除く): 31525998

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 37, 74, 111, 185, 222, 370, 555, 1110, 19387, 38774, 58161, 96935, 116322, 193870, 290805, 581610, 717319, 1434638, 2151957, 3586595, 4303914, 7173190, 10759785, 21519570]

約数ペア:

[(1, 21519570), (2, 10759785), (3, 7173190), (5, 4303914), (6, 3586595), (10, 2151957), (15, 1434638), (30, 717319), (37, 581610), (74, 290805), (111, 193870), (185, 116322), (222, 96935), (370, 58161), (555, 38774), (1110, 19387)]