21891567279

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{197}}^1\times {\mathrm{269}}^1\times {\mathrm{5987}}^1$

素因数の和:6479

約数の個数: 32

約数和(自身を含む): 30731374080

約数和(自身を除く): 8839806801

約数列:

[1, 3, 23, 69, 197, 269, 591, 807, 4531, 5987, 6187, 13593, 17961, 18561, 52993, 137701, 158979, 413103, 1179439, 1218839, 1610503, 3538317, 3656517, 4831509, 27127097, 37041569, 81381291, 111124707, 317269091, 951807273, 7297189093, 21891567279]

約数ペア:

[(1, 21891567279), (3, 7297189093), (23, 951807273), (69, 317269091), (197, 111124707), (269, 81381291), (591, 37041569), (807, 27127097), (4531, 4831509), (5987, 3656517), (6187, 3538317), (13593, 1610503), (17961, 1218839), (18561, 1179439), (52993, 413103), (137701, 158979)]