20121745812

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{223}}^2\times {\mathrm{4817}}^1$

素因数の和:5277

約数の個数: 72

約数和(自身を含む): 53910876096

約数和(自身を除く): 33789130284

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 223, 446, 669, 892, 1338, 1561, 2676, 3122, 4683, 4817, 6244, 9366, 9634, 14451, 18732, 19268, 28902, 33719, 49729, 57804, 67438, 99458, 101157, 134876, 149187, 198916, 202314, 298374, 348103, 404628, 596748, 696206, 1044309, 1074191, 1392412, 2088618, 2148382, 3222573, 4177236, 4296764, 6445146, 7519337, 12890292, 15038674, 22558011, 30077348, 45116022, 90232044, 239544593, 479089186, 718633779, 958178372, 1437267558, 1676812151, 2874535116, 3353624302, 5030436453, 6707248604, 10060872906, 20121745812]

約数ペア:

[(1, 20121745812), (2, 10060872906), (3, 6707248604), (4, 5030436453), (6, 3353624302), (7, 2874535116), (12, 1676812151), (14, 1437267558), (21, 958178372), (28, 718633779), (42, 479089186), (84, 239544593), (223, 90232044), (446, 45116022), (669, 30077348), (892, 22558011), (1338, 15038674), (1561, 12890292), (2676, 7519337), (3122, 6445146), (4683, 4296764), (4817, 4177236), (6244, 3222573), (9366, 2148382), (9634, 2088618), (14451, 1392412), (18732, 1074191), (19268, 1044309), (28902, 696206), (33719, 596748), (49729, 404628), (57804, 348103), (67438, 298374), (99458, 202314), (101157, 198916), (134876, 149187)]