9215690

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{421}}^1$

素因数の和:638

約数の個数: 32

約数和(自身を含む): 18230400

約数和(自身を除く): 9014710

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 199, 398, 421, 842, 995, 1990, 2105, 2189, 4210, 4378, 4631, 9262, 10945, 21890, 23155, 46310, 83779, 167558, 418895, 837790, 921569, 1843138, 4607845, 9215690]

約数ペア:

[(1, 9215690), (2, 4607845), (5, 1843138), (10, 921569), (11, 837790), (22, 418895), (55, 167558), (110, 83779), (199, 46310), (398, 23155), (421, 21890), (842, 10945), (995, 9262), (1990, 4631), (2105, 4378), (2189, 4210)]