19915336

素因数分解:

$2^3\times 7^1\times {\mathrm{349}}^1\times {\mathrm{1019}}^1$

素因数の和:1381

約数の個数: 32

約数和(自身を含む): 42840000

約数和(自身を除く): 22924664

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 349, 698, 1019, 1396, 2038, 2443, 2792, 4076, 4886, 7133, 8152, 9772, 14266, 19544, 28532, 57064, 355631, 711262, 1422524, 2489417, 2845048, 4978834, 9957668, 19915336]

約数ペア:

[(1, 19915336), (2, 9957668), (4, 4978834), (7, 2845048), (8, 2489417), (14, 1422524), (28, 711262), (56, 355631), (349, 57064), (698, 28532), (1019, 19544), (1396, 14266), (2038, 9772), (2443, 8152), (2792, 7133), (4076, 4886)]