21284800002

素因数分解:

$2^1\times 3^3\times {\mathrm{2203}}^1\times {\mathrm{178921}}^1$

素因数の和:181135

約数の個数: 32

約数和(自身を含む): 47321290560

約数和(自身を除く): 26036490558

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 2203, 4406, 6609, 13218, 19827, 39654, 59481, 118962, 178921, 357842, 536763, 1073526, 1610289, 3220578, 4830867, 9661734, 394162963, 788325926, 1182488889, 2364977778, 3547466667, 7094933334, 10642400001, 21284800002]

約数ペア:

[(1, 21284800002), (2, 10642400001), (3, 7094933334), (6, 3547466667), (9, 2364977778), (18, 1182488889), (27, 788325926), (54, 394162963), (2203, 9661734), (4406, 4830867), (6609, 3220578), (13218, 1610289), (19827, 1073526), (39654, 536763), (59481, 357842), (118962, 178921)]