21689738

素因数分解:

$2^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{1303}}^1$

素因数の和:1382

約数の個数: 32

約数和(自身を含む): 39432960

約数和(自身を除く): 17743222

約数列:

[1, 2, 7, 14, 29, 41, 58, 82, 203, 287, 406, 574, 1189, 1303, 2378, 2606, 8323, 9121, 16646, 18242, 37787, 53423, 75574, 106846, 264509, 373961, 529018, 747922, 1549267, 3098534, 10844869, 21689738]

約数ペア:

[(1, 21689738), (2, 10844869), (7, 3098534), (14, 1549267), (29, 747922), (41, 529018), (58, 373961), (82, 264509), (203, 106846), (287, 75574), (406, 53423), (574, 37787), (1189, 18242), (1303, 16646), (2378, 9121), (2606, 8323)]