21893288

素因数分解:

$2^3\times {\mathrm{89}}^1\times {\mathrm{97}}^1\times {\mathrm{317}}^1$

素因数の和:509

約数の個数: 32

約数和(自身を含む): 42071400

約数和(自身を除く): 20178112

約数列:

[1, 2, 4, 8, 89, 97, 178, 194, 317, 356, 388, 634, 712, 776, 1268, 2536, 8633, 17266, 28213, 30749, 34532, 56426, 61498, 69064, 112852, 122996, 225704, 245992, 2736661, 5473322, 10946644, 21893288]

約数ペア:

[(1, 21893288), (2, 10946644), (4, 5473322), (8, 2736661), (89, 245992), (97, 225704), (178, 122996), (194, 112852), (317, 69064), (356, 61498), (388, 56426), (634, 34532), (712, 30749), (776, 28213), (1268, 17266), (2536, 8633)]