20423265

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{167}}^1\times {\mathrm{263}}^1$

素因数の和:469

約数の個数: 32

約数和(自身を含む): 34062336

約数和(自身を除く): 13639071

約数列:

[1, 3, 5, 15, 31, 93, 155, 167, 263, 465, 501, 789, 835, 1315, 2505, 3945, 5177, 8153, 15531, 24459, 25885, 40765, 43921, 77655, 122295, 131763, 219605, 658815, 1361551, 4084653, 6807755, 20423265]

約数ペア:

[(1, 20423265), (3, 6807755), (5, 4084653), (15, 1361551), (31, 658815), (93, 219605), (155, 131763), (167, 122295), (263, 77655), (465, 43921), (501, 40765), (789, 25885), (835, 24459), (1315, 15531), (2505, 8153), (3945, 5177)]