21536263

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{1321}}^1$

素因数の和:1482

約数の個数: 16

約数和(自身を含む): 26270784

約数和(自身を除く): 4734521

約数列:

[1, 7, 17, 119, 137, 959, 1321, 2329, 9247, 16303, 22457, 157199, 180977, 1266839, 3076609, 21536263]

約数ペア:

[(1, 21536263), (7, 3076609), (17, 1266839), (119, 180977), (137, 157199), (959, 22457), (1321, 16303), (2329, 9247)]