21300344

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{1879}}^1$

素因数の和:2007

約数の個数: 32

約数和(自身を含む): 43428000

約数和(自身を除く): 22127656

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 109, 218, 436, 872, 1417, 1879, 2834, 3758, 5668, 7516, 11336, 15032, 24427, 48854, 97708, 195416, 204811, 409622, 819244, 1638488, 2662543, 5325086, 10650172, 21300344]

約数ペア:

[(1, 21300344), (2, 10650172), (4, 5325086), (8, 2662543), (13, 1638488), (26, 819244), (52, 409622), (104, 204811), (109, 195416), (218, 97708), (436, 48854), (872, 24427), (1417, 15032), (1879, 11336), (2834, 7516), (3758, 5668)]