18012015

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{271}}^1$

素因数の和:500

約数の個数: 48

約数和(自身を含む): 35982336

約数和(自身を除く): 17970321

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 211, 271, 315, 633, 813, 1055, 1355, 1477, 1897, 1899, 2439, 3165, 4065, 4431, 5691, 7385, 9485, 9495, 12195, 13293, 17073, 22155, 28455, 57181, 66465, 85365, 171543, 285905, 400267, 514629, 857715, 1200801, 2001335, 2573145, 3602403, 6004005, 18012015]

約数ペア:

[(1, 18012015), (3, 6004005), (5, 3602403), (7, 2573145), (9, 2001335), (15, 1200801), (21, 857715), (35, 514629), (45, 400267), (63, 285905), (105, 171543), (211, 85365), (271, 66465), (315, 57181), (633, 28455), (813, 22155), (1055, 17073), (1355, 13293), (1477, 12195), (1897, 9495), (1899, 9485), (2439, 7385), (3165, 5691), (4065, 4431)]