21694480

素因数分解:

$2^4\times 5^1\times {\mathrm{271181}}^1$

素因数の和:271194

約数の個数: 20

約数和(自身を含む): 50439852

約数和(自身を除く): 28745372

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 271181, 542362, 1084724, 1355905, 2169448, 2711810, 4338896, 5423620, 10847240, 21694480]

約数ペア:

[(1, 21694480), (2, 10847240), (4, 5423620), (5, 4338896), (8, 2711810), (10, 2169448), (16, 1355905), (20, 1084724), (40, 542362), (80, 271181)]