20913828

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{1697}}^1$

素因数の和:1796

約数の個数: 48

約数和(自身を含む): 53249280

約数和(自身を除く): 32335452

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 79, 156, 158, 237, 316, 474, 948, 1027, 1697, 2054, 3081, 3394, 4108, 5091, 6162, 6788, 10182, 12324, 20364, 22061, 44122, 66183, 88244, 132366, 134063, 264732, 268126, 402189, 536252, 804378, 1608756, 1742819, 3485638, 5228457, 6971276, 10456914, 20913828]

約数ペア:

[(1, 20913828), (2, 10456914), (3, 6971276), (4, 5228457), (6, 3485638), (12, 1742819), (13, 1608756), (26, 804378), (39, 536252), (52, 402189), (78, 268126), (79, 264732), (156, 134063), (158, 132366), (237, 88244), (316, 66183), (474, 44122), (948, 22061), (1027, 20364), (1697, 12324), (2054, 10182), (3081, 6788), (3394, 6162), (4108, 5091)]