21131018

素因数分解:

$2^1\times {\mathrm{73}}^1\times {\mathrm{101}}^1\times {\mathrm{1433}}^1$

素因数の和:1609

約数の個数: 16

約数和(自身を含む): 32471496

約数和(自身を除く): 11340478

約数列:

[1, 2, 73, 101, 146, 202, 1433, 2866, 7373, 14746, 104609, 144733, 209218, 289466, 10565509, 21131018]

約数ペア:

[(1, 21131018), (2, 10565509), (73, 289466), (101, 209218), (146, 144733), (202, 104609), (1433, 14746), (2866, 7373)]