20668788

素因数分解:

$2^2\times 3^2\times 7^2\times {\mathrm{11717}}^1$

素因数の和:11741

約数の個数: 54

約数和(自身を含む): 60781266

約数和(自身を除く): 40112478

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 49, 63, 84, 98, 126, 147, 196, 252, 294, 441, 588, 882, 1764, 11717, 23434, 35151, 46868, 70302, 82019, 105453, 140604, 164038, 210906, 246057, 328076, 421812, 492114, 574133, 738171, 984228, 1148266, 1476342, 1722399, 2296532, 2952684, 3444798, 5167197, 6889596, 10334394, 20668788]

約数ペア:

[(1, 20668788), (2, 10334394), (3, 6889596), (4, 5167197), (6, 3444798), (7, 2952684), (9, 2296532), (12, 1722399), (14, 1476342), (18, 1148266), (21, 984228), (28, 738171), (36, 574133), (42, 492114), (49, 421812), (63, 328076), (84, 246057), (98, 210906), (126, 164038), (147, 140604), (196, 105453), (252, 82019), (294, 70302), (441, 46868), (588, 35151), (882, 23434), (1764, 11717)]