21115696904

素因数分解:

$2^3\times {\mathrm{4003}}^1\times {\mathrm{659371}}^1$

素因数の和:663380

約数の個数: 16

約数和(自身を含む): 39601882320

約数和(自身を除く): 18486185416

約数列:

[1, 2, 4, 8, 4003, 8006, 16012, 32024, 659371, 1318742, 2637484, 5274968, 2639462113, 5278924226, 10557848452, 21115696904]

約数ペア:

[(1, 21115696904), (2, 10557848452), (4, 5278924226), (8, 2639462113), (4003, 5274968), (8006, 2637484), (16012, 1318742), (32024, 659371)]