20161791

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{467}}^1$

素因数の和:533

約数の個数: 40

約数和(自身を含む): 33297264

約数和(自身を除く): 13135473

約数列:

[1, 3, 9, 13, 27, 39, 41, 81, 117, 123, 351, 369, 467, 533, 1053, 1107, 1401, 1599, 3321, 4203, 4797, 6071, 12609, 14391, 18213, 19147, 37827, 43173, 54639, 57441, 163917, 172323, 248911, 491751, 516969, 746733, 1550907, 2240199, 6720597, 20161791]

約数ペア:

[(1, 20161791), (3, 6720597), (9, 2240199), (13, 1550907), (27, 746733), (39, 516969), (41, 491751), (81, 248911), (117, 172323), (123, 163917), (351, 57441), (369, 54639), (467, 43173), (533, 37827), (1053, 19147), (1107, 18213), (1401, 14391), (1599, 12609), (3321, 6071), (4203, 4797)]