20865610

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{109819}}^1$

素因数の和:109845

約数の個数: 16

約数和(自身を含む): 39535200

約数和(自身を除く): 18669590

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 109819, 219638, 549095, 1098190, 2086561, 4173122, 10432805, 20865610]

約数ペア:

[(1, 20865610), (2, 10432805), (5, 4173122), (10, 2086561), (19, 1098190), (38, 549095), (95, 219638), (190, 109819)]