21046155

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{2917}}^1$

素因数の和:2975

約数の個数: 32

約数和(自身を含む): 37257024

約数和(自身を除く): 16210869

約数列:

[1, 3, 5, 13, 15, 37, 39, 65, 111, 185, 195, 481, 555, 1443, 2405, 2917, 7215, 8751, 14585, 37921, 43755, 107929, 113763, 189605, 323787, 539645, 568815, 1403077, 1618935, 4209231, 7015385, 21046155]

約数ペア:

[(1, 21046155), (3, 7015385), (5, 4209231), (13, 1618935), (15, 1403077), (37, 568815), (39, 539645), (65, 323787), (111, 189605), (185, 113763), (195, 107929), (481, 43755), (555, 37921), (1443, 14585), (2405, 8751), (2917, 7215)]