19963736

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{1381}}^1$

素因数の和:1539

約数の個数: 32

約数和(自身を含む): 40630800

約数和(自身を除く): 20667064

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 139, 278, 556, 1112, 1381, 1807, 2762, 3614, 5524, 7228, 11048, 14456, 17953, 35906, 71812, 143624, 191959, 383918, 767836, 1535672, 2495467, 4990934, 9981868, 19963736]

約数ペア:

[(1, 19963736), (2, 9981868), (4, 4990934), (8, 2495467), (13, 1535672), (26, 767836), (52, 383918), (104, 191959), (139, 143624), (278, 71812), (556, 35906), (1112, 17953), (1381, 14456), (1807, 11048), (2762, 7228), (3614, 5524)]