21018806565

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{241}}^1\times {\mathrm{5879}}^1$

素因数の和:6194

約数の個数: 64

約数和(自身を含む): 36063498240

約数和(自身を除く): 15044691675

約数列:

[1, 3, 5, 15, 23, 43, 69, 115, 129, 215, 241, 345, 645, 723, 989, 1205, 2967, 3615, 4945, 5543, 5879, 10363, 14835, 16629, 17637, 27715, 29395, 31089, 51815, 83145, 88185, 135217, 155445, 238349, 252797, 405651, 676085, 715047, 758391, 1191745, 1263985, 1416839, 2028255, 3575235, 3791955, 4250517, 5814331, 7084195, 17442993, 21252585, 29071655, 32587297, 60924077, 87214965, 97761891, 162936485, 182772231, 304620385, 488809455, 913861155, 1401253771, 4203761313, 7006268855, 21018806565]

約数ペア:

[(1, 21018806565), (3, 7006268855), (5, 4203761313), (15, 1401253771), (23, 913861155), (43, 488809455), (69, 304620385), (115, 182772231), (129, 162936485), (215, 97761891), (241, 87214965), (345, 60924077), (645, 32587297), (723, 29071655), (989, 21252585), (1205, 17442993), (2967, 7084195), (3615, 5814331), (4945, 4250517), (5543, 3791955), (5879, 3575235), (10363, 2028255), (14835, 1416839), (16629, 1263985), (17637, 1191745), (27715, 758391), (29395, 715047), (31089, 676085), (51815, 405651), (83145, 252797), (88185, 238349), (135217, 155445)]