21551145531

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{331}}^1\times {\mathrm{17981}}^1$

素因数の和:18403

約数の個数: 32

約数和(自身を含む): 30948604416

約数和(自身を除く): 9397458885

約数列:

[1, 3, 17, 51, 71, 213, 331, 993, 1207, 3621, 5627, 16881, 17981, 23501, 53943, 70503, 305677, 399517, 917031, 1198551, 1276651, 3829953, 5951711, 17855133, 21703067, 65109201, 101179087, 303537261, 422571481, 1267714443, 7183715177, 21551145531]

約数ペア:

[(1, 21551145531), (3, 7183715177), (17, 1267714443), (51, 422571481), (71, 303537261), (213, 101179087), (331, 65109201), (993, 21703067), (1207, 17855133), (3621, 5951711), (5627, 3829953), (16881, 1276651), (17981, 1198551), (23501, 917031), (53943, 399517), (70503, 305677)]