21669152

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{653}}^1$

素因数の和:741

約数の個数: 48

約数和(自身を含む): 45981432

約数和(自身を除く): 24312280

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 61, 68, 122, 136, 244, 272, 488, 544, 653, 976, 1037, 1306, 1952, 2074, 2612, 4148, 5224, 8296, 10448, 11101, 16592, 20896, 22202, 33184, 39833, 44404, 79666, 88808, 159332, 177616, 318664, 355232, 637328, 677161, 1274656, 1354322, 2708644, 5417288, 10834576, 21669152]

約数ペア:

[(1, 21669152), (2, 10834576), (4, 5417288), (8, 2708644), (16, 1354322), (17, 1274656), (32, 677161), (34, 637328), (61, 355232), (68, 318664), (122, 177616), (136, 159332), (244, 88808), (272, 79666), (488, 44404), (544, 39833), (653, 33184), (976, 22202), (1037, 20896), (1306, 16592), (1952, 11101), (2074, 10448), (2612, 8296), (4148, 5224)]