20985588

素因数分解:

$2^2\times 3^3\times {\mathrm{13}}^1\times {\mathrm{14947}}^1$

素因数の和:14973

約数の個数: 48

約数和(自身を含む): 58596160

約数和(自身を除く): 37610572

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 39, 52, 54, 78, 108, 117, 156, 234, 351, 468, 702, 1404, 14947, 29894, 44841, 59788, 89682, 134523, 179364, 194311, 269046, 388622, 403569, 538092, 582933, 777244, 807138, 1165866, 1614276, 1748799, 2331732, 3497598, 5246397, 6995196, 10492794, 20985588]

約数ペア:

[(1, 20985588), (2, 10492794), (3, 6995196), (4, 5246397), (6, 3497598), (9, 2331732), (12, 1748799), (13, 1614276), (18, 1165866), (26, 807138), (27, 777244), (36, 582933), (39, 538092), (52, 403569), (54, 388622), (78, 269046), (108, 194311), (117, 179364), (156, 134523), (234, 89682), (351, 59788), (468, 44841), (702, 29894), (1404, 14947)]