1520782221

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{733}}^1\times {\mathrm{3187}}^1$

素因数の和:3961

約数の個数: 32

約数和(自身を含む): 2396151808

約数和(自身を除く): 875369587

約数列:

[1, 3, 7, 21, 31, 93, 217, 651, 733, 2199, 3187, 5131, 9561, 15393, 22309, 22723, 66927, 68169, 98797, 159061, 296391, 477183, 691579, 2074737, 2336071, 7008213, 16352497, 49057491, 72418201, 217254603, 506927407, 1520782221]

約数ペア:

[(1, 1520782221), (3, 506927407), (7, 217254603), (21, 72418201), (31, 49057491), (93, 16352497), (217, 7008213), (651, 2336071), (733, 2074737), (2199, 691579), (3187, 477183), (5131, 296391), (9561, 159061), (15393, 98797), (22309, 68169), (22723, 66927)]