19893021085

素因数分解:

$5^1\times 7^1\times {\mathrm{359}}^1\times {\mathrm{647}}^1\times {\mathrm{2447}}^1$

素因数の和:3465

約数の個数: 32

約数和(自身を含む): 27411333120

約数和(自身を除く): 7518312035

約数列:

[1, 5, 7, 35, 359, 647, 1795, 2447, 2513, 3235, 4529, 12235, 12565, 17129, 22645, 85645, 232273, 878473, 1161365, 1583209, 1625911, 4392365, 6149311, 7916045, 8129555, 11082463, 30746555, 55412315, 568372031, 2841860155, 3978604217, 19893021085]

約数ペア:

[(1, 19893021085), (5, 3978604217), (7, 2841860155), (35, 568372031), (359, 55412315), (647, 30746555), (1795, 11082463), (2447, 8129555), (2513, 7916045), (3235, 6149311), (4529, 4392365), (12235, 1625911), (12565, 1583209), (17129, 1161365), (22645, 878473), (85645, 232273)]