21644344

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{1087}}^1$

素因数の和:1243

約数の個数: 32

約数和(自身を含む): 43084800

約数和(自身を除く): 21440456

約数列:

[1, 2, 4, 8, 19, 38, 76, 131, 152, 262, 524, 1048, 1087, 2174, 2489, 4348, 4978, 8696, 9956, 19912, 20653, 41306, 82612, 142397, 165224, 284794, 569588, 1139176, 2705543, 5411086, 10822172, 21644344]

約数ペア:

[(1, 21644344), (2, 10822172), (4, 5411086), (8, 2705543), (19, 1139176), (38, 569588), (76, 284794), (131, 165224), (152, 142397), (262, 82612), (524, 41306), (1048, 20653), (1087, 19912), (2174, 9956), (2489, 8696), (4348, 4978)]