20688156

素因数分解:

$2^2\times 3^3\times {\mathrm{223}}^1\times {\mathrm{859}}^1$

素因数の和:1095

約数の個数: 48

約数和(自身を含む): 53939200

約数和(自身を除く): 33251044

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 223, 446, 669, 859, 892, 1338, 1718, 2007, 2577, 2676, 3436, 4014, 5154, 6021, 7731, 8028, 10308, 12042, 15462, 23193, 24084, 30924, 46386, 92772, 191557, 383114, 574671, 766228, 1149342, 1724013, 2298684, 3448026, 5172039, 6896052, 10344078, 20688156]

約数ペア:

[(1, 20688156), (2, 10344078), (3, 6896052), (4, 5172039), (6, 3448026), (9, 2298684), (12, 1724013), (18, 1149342), (27, 766228), (36, 574671), (54, 383114), (108, 191557), (223, 92772), (446, 46386), (669, 30924), (859, 24084), (892, 23193), (1338, 15462), (1718, 12042), (2007, 10308), (2577, 8028), (2676, 7731), (3436, 6021), (4014, 5154)]