21983115

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{2719}}^1$

素因数の和:2752

約数の個数: 48

約数和(自身を含む): 44651520

約数和(自身を除く): 22668405

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 49, 55, 77, 105, 147, 165, 231, 245, 385, 539, 735, 1155, 1617, 2695, 2719, 8085, 8157, 13595, 19033, 29909, 40785, 57099, 89727, 95165, 133231, 149545, 209363, 285495, 399693, 448635, 628089, 666155, 1046815, 1465541, 1998465, 3140445, 4396623, 7327705, 21983115]

約数ペア:

[(1, 21983115), (3, 7327705), (5, 4396623), (7, 3140445), (11, 1998465), (15, 1465541), (21, 1046815), (33, 666155), (35, 628089), (49, 448635), (55, 399693), (77, 285495), (105, 209363), (147, 149545), (165, 133231), (231, 95165), (245, 89727), (385, 57099), (539, 40785), (735, 29909), (1155, 19033), (1617, 13595), (2695, 8157), (2719, 8085)]