31380723

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{83}}^1$

素因数の和:189

約数の個数: 64

約数和(自身を含む): 54835200

約数和(自身を除く): 23454477

約数列:

[1, 3, 9, 11, 19, 27, 33, 57, 67, 83, 99, 171, 201, 209, 249, 297, 513, 603, 627, 737, 747, 913, 1273, 1577, 1809, 1881, 2211, 2241, 2739, 3819, 4731, 5561, 5643, 6633, 8217, 11457, 14003, 14193, 16683, 17347, 19899, 24651, 34371, 42009, 42579, 50049, 52041, 61171, 105659, 126027, 150147, 156123, 183513, 316977, 378081, 468369, 550539, 950931, 1162249, 1651617, 2852793, 3486747, 10460241, 31380723]

約数ペア:

[(1, 31380723), (3, 10460241), (9, 3486747), (11, 2852793), (19, 1651617), (27, 1162249), (33, 950931), (57, 550539), (67, 468369), (83, 378081), (99, 316977), (171, 183513), (201, 156123), (209, 150147), (249, 126027), (297, 105659), (513, 61171), (603, 52041), (627, 50049), (737, 42579), (747, 42009), (913, 34371), (1273, 24651), (1577, 19899), (1809, 17347), (1881, 16683), (2211, 14193), (2241, 14003), (2739, 11457), (3819, 8217), (4731, 6633), (5561, 5643)]