21761327

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{1249}}^1$

素因数の和:1406

約数の個数: 16

約数和(自身を含む): 26400000

約数和(自身を除く): 4638673

約数列:

[1, 7, 19, 131, 133, 917, 1249, 2489, 8743, 17423, 23731, 163619, 166117, 1145333, 3108761, 21761327]

約数ペア:

[(1, 21761327), (7, 3108761), (19, 1145333), (131, 166117), (133, 163619), (917, 23731), (1249, 17423), (2489, 8743)]