16890855

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{173}}^1\times {\mathrm{283}}^1$

素因数の和:487

約数の個数: 32

約数和(自身を含む): 28463616

約数和(自身を除く): 11572761

約数列:

[1, 3, 5, 15, 23, 69, 115, 173, 283, 345, 519, 849, 865, 1415, 2595, 3979, 4245, 6509, 11937, 19527, 19895, 32545, 48959, 59685, 97635, 146877, 244795, 734385, 1126057, 3378171, 5630285, 16890855]

約数ペア:

[(1, 16890855), (3, 5630285), (5, 3378171), (15, 1126057), (23, 734385), (69, 244795), (115, 146877), (173, 97635), (283, 59685), (345, 48959), (519, 32545), (849, 19895), (865, 19527), (1415, 11937), (2595, 6509), (3979, 4245)]