19906845

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{8243}}^1$

素因数の和:8281

約数の個数: 32

約数和(自身を含む): 37988352

約数和(自身を除く): 18081507

約数列:

[1, 3, 5, 7, 15, 21, 23, 35, 69, 105, 115, 161, 345, 483, 805, 2415, 8243, 24729, 41215, 57701, 123645, 173103, 189589, 288505, 568767, 865515, 947945, 1327123, 2843835, 3981369, 6635615, 19906845]

約数ペア:

[(1, 19906845), (3, 6635615), (5, 3981369), (7, 2843835), (15, 1327123), (21, 947945), (23, 865515), (35, 568767), (69, 288505), (105, 189589), (115, 173103), (161, 123645), (345, 57701), (483, 41215), (805, 24729), (2415, 8243)]