21446960

素因数分解:

$2^4\times 5^1\times {\mathrm{227}}^1\times {\mathrm{1181}}^1$

素因数の和:1421

約数の個数: 40

約数和(自身を含む): 50126256

約数和(自身を除く): 28679296

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 227, 454, 908, 1135, 1181, 1816, 2270, 2362, 3632, 4540, 4724, 5905, 9080, 9448, 11810, 18160, 18896, 23620, 47240, 94480, 268087, 536174, 1072348, 1340435, 2144696, 2680870, 4289392, 5361740, 10723480, 21446960]

約数ペア:

[(1, 21446960), (2, 10723480), (4, 5361740), (5, 4289392), (8, 2680870), (10, 2144696), (16, 1340435), (20, 1072348), (40, 536174), (80, 268087), (227, 94480), (454, 47240), (908, 23620), (1135, 18896), (1181, 18160), (1816, 11810), (2270, 9448), (2362, 9080), (3632, 5905), (4540, 4724)]