81638214

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{3911}}^1$

素因数の和:4001

約数の個数: 48

約数和(自身を含む): 192658176

約数和(自身を除く): 111019962

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 71, 98, 142, 147, 213, 294, 426, 497, 994, 1491, 2982, 3479, 3911, 6958, 7822, 10437, 11733, 20874, 23466, 27377, 54754, 82131, 164262, 191639, 277681, 383278, 555362, 574917, 833043, 1149834, 1666086, 1943767, 3887534, 5831301, 11662602, 13606369, 27212738, 40819107, 81638214]

約数ペア:

[(1, 81638214), (2, 40819107), (3, 27212738), (6, 13606369), (7, 11662602), (14, 5831301), (21, 3887534), (42, 1943767), (49, 1666086), (71, 1149834), (98, 833043), (142, 574917), (147, 555362), (213, 383278), (294, 277681), (426, 191639), (497, 164262), (994, 82131), (1491, 54754), (2982, 27377), (3479, 23466), (3911, 20874), (6958, 11733), (7822, 10437)]