19881708

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{21517}}^1$

素因数の和:21542

約数の個数: 48

約数和(自身を含む): 57840384

約数和(自身を除く): 37958676

約数列:

[1, 2, 3, 4, 6, 7, 11, 12, 14, 21, 22, 28, 33, 42, 44, 66, 77, 84, 132, 154, 231, 308, 462, 924, 21517, 43034, 64551, 86068, 129102, 150619, 236687, 258204, 301238, 451857, 473374, 602476, 710061, 903714, 946748, 1420122, 1656809, 1807428, 2840244, 3313618, 4970427, 6627236, 9940854, 19881708]

約数ペア:

[(1, 19881708), (2, 9940854), (3, 6627236), (4, 4970427), (6, 3313618), (7, 2840244), (11, 1807428), (12, 1656809), (14, 1420122), (21, 946748), (22, 903714), (28, 710061), (33, 602476), (42, 473374), (44, 451857), (66, 301238), (77, 258204), (84, 236687), (132, 150619), (154, 129102), (231, 86068), (308, 64551), (462, 43034), (924, 21517)]