21809595

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{181}}^1\times {\mathrm{277}}^1$

素因数の和:495

約数の個数: 32

約数和(自身を含む): 36429120

約数和(自身を除く): 14619525

約数列:

[1, 3, 5, 15, 29, 87, 145, 181, 277, 435, 543, 831, 905, 1385, 2715, 4155, 5249, 8033, 15747, 24099, 26245, 40165, 50137, 78735, 120495, 150411, 250685, 752055, 1453973, 4361919, 7269865, 21809595]

約数ペア:

[(1, 21809595), (3, 7269865), (5, 4361919), (15, 1453973), (29, 752055), (87, 250685), (145, 150411), (181, 120495), (277, 78735), (435, 50137), (543, 40165), (831, 26245), (905, 24099), (1385, 15747), (2715, 8033), (4155, 5249)]