16538015

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{97}}^1$

素因数の和:219

約数の個数: 32

約数和(自身を含む): 22456896

約数和(自身を除く): 5918881

約数列:

[1, 5, 13, 43, 61, 65, 97, 215, 305, 485, 559, 793, 1261, 2623, 2795, 3965, 4171, 5917, 6305, 13115, 20855, 29585, 34099, 54223, 76921, 170495, 254431, 271115, 384605, 1272155, 3307603, 16538015]

約数ペア:

[(1, 16538015), (5, 3307603), (13, 1272155), (43, 384605), (61, 271115), (65, 254431), (97, 170495), (215, 76921), (305, 54223), (485, 34099), (559, 29585), (793, 20855), (1261, 13115), (2623, 6305), (2795, 5917), (3965, 4171)]