20668716

素因数分解:

$2^2\times 3^3\times {\mathrm{211}}^1\times {\mathrm{907}}^1$

素因数の和:1131

約数の個数: 48

約数和(自身を含む): 53898880

約数和(自身を除く): 33230164

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 211, 422, 633, 844, 907, 1266, 1814, 1899, 2532, 2721, 3628, 3798, 5442, 5697, 7596, 8163, 10884, 11394, 16326, 22788, 24489, 32652, 48978, 97956, 191377, 382754, 574131, 765508, 1148262, 1722393, 2296524, 3444786, 5167179, 6889572, 10334358, 20668716]

約数ペア:

[(1, 20668716), (2, 10334358), (3, 6889572), (4, 5167179), (6, 3444786), (9, 2296524), (12, 1722393), (18, 1148262), (27, 765508), (36, 574131), (54, 382754), (108, 191377), (211, 97956), (422, 48978), (633, 32652), (844, 24489), (907, 22788), (1266, 16326), (1814, 11394), (1899, 10884), (2532, 8163), (2721, 7596), (3628, 5697), (3798, 5442)]