21616718

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{619}}^1\times {\mathrm{919}}^1$

素因数の和:1559

約数の個数: 16

約数和(自身を含む): 34224000

約数和(自身を除く): 12607282

約数列:

[1, 2, 19, 38, 619, 919, 1238, 1838, 11761, 17461, 23522, 34922, 568861, 1137722, 10808359, 21616718]

約数ペア:

[(1, 21616718), (2, 10808359), (19, 1137722), (38, 568861), (619, 34922), (919, 23522), (1238, 17461), (1838, 11761)]