20438398

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{643}}^1\times {\mathrm{691}}^1$

素因数の和:1359

約数の個数: 16

約数和(自身を含む): 32086656

約数和(自身を除く): 11648258

約数列:

[1, 2, 23, 46, 643, 691, 1286, 1382, 14789, 15893, 29578, 31786, 444313, 888626, 10219199, 20438398]

約数ペア:

[(1, 20438398), (2, 10219199), (23, 888626), (46, 444313), (643, 31786), (691, 29578), (1286, 15893), (1382, 14789)]