19984671

素因数分解:

$3^3\times 7^1\times {\mathrm{41}}^1\times {\mathrm{2579}}^1$

素因数の和:2636

約数の個数: 32

約数和(自身を含む): 34675200

約数和(自身を除く): 14690529

約数列:

[1, 3, 7, 9, 21, 27, 41, 63, 123, 189, 287, 369, 861, 1107, 2579, 2583, 7737, 7749, 18053, 23211, 54159, 69633, 105739, 162477, 317217, 487431, 740173, 951651, 2220519, 2854953, 6661557, 19984671]

約数ペア:

[(1, 19984671), (3, 6661557), (7, 2854953), (9, 2220519), (21, 951651), (27, 740173), (41, 487431), (63, 317217), (123, 162477), (189, 105739), (287, 69633), (369, 54159), (861, 23211), (1107, 18053), (2579, 7749), (2583, 7737)]