20687418

素因数分解:

$2^1\times 3^2\times {\mathrm{61}}^1\times {\mathrm{83}}^1\times {\mathrm{227}}^1$

素因数の和:379

約数の個数: 48

約数和(自身を含む): 46309536

約数和(自身を除く): 25622118

約数列:

[1, 2, 3, 6, 9, 18, 61, 83, 122, 166, 183, 227, 249, 366, 454, 498, 549, 681, 747, 1098, 1362, 1494, 2043, 4086, 5063, 10126, 13847, 15189, 18841, 27694, 30378, 37682, 41541, 45567, 56523, 83082, 91134, 113046, 124623, 169569, 249246, 339138, 1149301, 2298602, 3447903, 6895806, 10343709, 20687418]

約数ペア:

[(1, 20687418), (2, 10343709), (3, 6895806), (6, 3447903), (9, 2298602), (18, 1149301), (61, 339138), (83, 249246), (122, 169569), (166, 124623), (183, 113046), (227, 91134), (249, 83082), (366, 56523), (454, 45567), (498, 41541), (549, 37682), (681, 30378), (747, 27694), (1098, 18841), (1362, 15189), (1494, 13847), (2043, 10126), (4086, 5063)]