21856346

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{7879}}^1$

素因数の和:7973

約数の個数: 16

約数和(自身を含む): 34987200

約数和(自身を除く): 13130854

約数列:

[1, 2, 19, 38, 73, 146, 1387, 2774, 7879, 15758, 149701, 299402, 575167, 1150334, 10928173, 21856346]

約数ペア:

[(1, 21856346), (2, 10928173), (19, 1150334), (38, 575167), (73, 299402), (146, 149701), (1387, 15758), (2774, 7879)]