201421155

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{27917}}^1$

素因数の和:27975

約数の個数: 32

約数和(自身を含む): 356457024

約数和(自身を除く): 155035869

約数列:

[1, 3, 5, 13, 15, 37, 39, 65, 111, 185, 195, 481, 555, 1443, 2405, 7215, 27917, 83751, 139585, 362921, 418755, 1032929, 1088763, 1814605, 3098787, 5164645, 5443815, 13428077, 15493935, 40284231, 67140385, 201421155]

約数ペア:

[(1, 201421155), (3, 67140385), (5, 40284231), (13, 15493935), (15, 13428077), (37, 5443815), (39, 5164645), (65, 3098787), (111, 1814605), (185, 1088763), (195, 1032929), (481, 418755), (555, 362921), (1443, 139585), (2405, 83751), (7215, 27917)]