18805215

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{797}}^1$

素因数の和:840

約数の個数: 48

約数和(自身を含む): 35661024

約数和(自身を除く): 16855809

約数列:

[1, 3, 5, 11, 13, 15, 33, 39, 55, 65, 121, 143, 165, 195, 363, 429, 605, 715, 797, 1573, 1815, 2145, 2391, 3985, 4719, 7865, 8767, 10361, 11955, 23595, 26301, 31083, 43835, 51805, 96437, 113971, 131505, 155415, 289311, 341913, 482185, 569855, 1253681, 1446555, 1709565, 3761043, 6268405, 18805215]

約数ペア:

[(1, 18805215), (3, 6268405), (5, 3761043), (11, 1709565), (13, 1446555), (15, 1253681), (33, 569855), (39, 482185), (55, 341913), (65, 289311), (121, 155415), (143, 131505), (165, 113971), (195, 96437), (363, 51805), (429, 43835), (605, 31083), (715, 26301), (797, 23595), (1573, 11955), (1815, 10361), (2145, 8767), (2391, 7865), (3985, 4719)]