21698729

素因数分解:

${\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{2341}}^1$

素因数の和:2408

約数の個数: 16

約数和(自身を含む): 25181184

約数和(自身を除く): 3482455

約数列:

[1, 13, 23, 31, 299, 403, 713, 2341, 9269, 30433, 53843, 72571, 699959, 943423, 1669133, 21698729]

約数ペア:

[(1, 21698729), (13, 1669133), (23, 943423), (31, 699959), (299, 72571), (403, 53843), (713, 30433), (2341, 9269)]