18953121

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{191}}^1$

素因数の和:333

約数の個数: 32

約数和(自身を含む): 28901376

約数和(自身を除く): 9948255

約数列:

[1, 3, 11, 31, 33, 93, 97, 191, 291, 341, 573, 1023, 1067, 2101, 3007, 3201, 5921, 6303, 9021, 17763, 18527, 33077, 55581, 65131, 99231, 195393, 203797, 574337, 611391, 1723011, 6317707, 18953121]

約数ペア:

[(1, 18953121), (3, 6317707), (11, 1723011), (31, 611391), (33, 574337), (93, 203797), (97, 195393), (191, 99231), (291, 65131), (341, 55581), (573, 33077), (1023, 18527), (1067, 17763), (2101, 9021), (3007, 6303), (3201, 5921)]