20911552

素因数分解:

$2^6\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{593}}^1$

素因数の和:653

約数の個数: 56

約数和(自身を含む): 45262800

約数和(自身を除く): 24351248

約数列:

[1, 2, 4, 8, 16, 19, 29, 32, 38, 58, 64, 76, 116, 152, 232, 304, 464, 551, 593, 608, 928, 1102, 1186, 1216, 1856, 2204, 2372, 4408, 4744, 8816, 9488, 11267, 17197, 17632, 18976, 22534, 34394, 35264, 37952, 45068, 68788, 90136, 137576, 180272, 275152, 326743, 360544, 550304, 653486, 721088, 1100608, 1306972, 2613944, 5227888, 10455776, 20911552]

約数ペア:

[(1, 20911552), (2, 10455776), (4, 5227888), (8, 2613944), (16, 1306972), (19, 1100608), (29, 721088), (32, 653486), (38, 550304), (58, 360544), (64, 326743), (76, 275152), (116, 180272), (152, 137576), (232, 90136), (304, 68788), (464, 45068), (551, 37952), (593, 35264), (608, 34394), (928, 22534), (1102, 18976), (1186, 17632), (1216, 17197), (1856, 11267), (2204, 9488), (2372, 8816), (4408, 4744)]