20778184

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{11969}}^1$

素因数の和:12013

約数の個数: 32

約数和(自身を含む): 45964800

約数和(自身を除く): 25186616

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 56, 62, 124, 217, 248, 434, 868, 1736, 11969, 23938, 47876, 83783, 95752, 167566, 335132, 371039, 670264, 742078, 1484156, 2597273, 2968312, 5194546, 10389092, 20778184]

約数ペア:

[(1, 20778184), (2, 10389092), (4, 5194546), (7, 2968312), (8, 2597273), (14, 1484156), (28, 742078), (31, 670264), (56, 371039), (62, 335132), (124, 167566), (217, 95752), (248, 83783), (434, 47876), (868, 23938), (1736, 11969)]