21681486

素因数分解:

$2^1\times 3^3\times {\mathrm{151}}^1\times {\mathrm{2659}}^1$

素因数の和:2821

約数の個数: 32

約数和(自身を含む): 48518400

約数和(自身を除く): 26836914

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 151, 302, 453, 906, 1359, 2659, 2718, 4077, 5318, 7977, 8154, 15954, 23931, 47862, 71793, 143586, 401509, 803018, 1204527, 2409054, 3613581, 7227162, 10840743, 21681486]

約数ペア:

[(1, 21681486), (2, 10840743), (3, 7227162), (6, 3613581), (9, 2409054), (18, 1204527), (27, 803018), (54, 401509), (151, 143586), (302, 71793), (453, 47862), (906, 23931), (1359, 15954), (2659, 8154), (2718, 7977), (4077, 5318)]