21755364535

素因数分解:

$5^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1\times {\mathrm{677}}^1\times {\mathrm{691}}^1$

素因数の和:1575

約数の個数: 32

約数和(自身を含む): 26754292224

約数和(自身を除く): 4998927689

約数列:

[1, 5, 71, 131, 355, 655, 677, 691, 3385, 3455, 9301, 46505, 48067, 49061, 88687, 90521, 240335, 245305, 443435, 452605, 467807, 2339035, 6296777, 6426991, 31483885, 32134955, 33214297, 61282717, 166071485, 306413585, 4351072907, 21755364535]

約数ペア:

[(1, 21755364535), (5, 4351072907), (71, 306413585), (131, 166071485), (355, 61282717), (655, 33214297), (677, 32134955), (691, 31483885), (3385, 6426991), (3455, 6296777), (9301, 2339035), (46505, 467807), (48067, 452605), (49061, 443435), (88687, 245305), (90521, 240335)]