19879335

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{283}}^1$

素因数の和:524

約数の個数: 48

約数和(自身を含む): 39696384

約数和(自身を除く): 19817049

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 223, 283, 315, 669, 849, 1115, 1415, 1561, 1981, 2007, 2547, 3345, 4245, 4683, 5943, 7805, 9905, 10035, 12735, 14049, 17829, 23415, 29715, 63109, 70245, 89145, 189327, 315545, 441763, 567981, 946635, 1325289, 2208815, 2839905, 3975867, 6626445, 19879335]

約数ペア:

[(1, 19879335), (3, 6626445), (5, 3975867), (7, 2839905), (9, 2208815), (15, 1325289), (21, 946635), (35, 567981), (45, 441763), (63, 315545), (105, 189327), (223, 89145), (283, 70245), (315, 63109), (669, 29715), (849, 23415), (1115, 17829), (1415, 14049), (1561, 12735), (1981, 10035), (2007, 9905), (2547, 7805), (3345, 5943), (4245, 4683)]