19861765

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{2243}}^1$

素因数の和:2289

約数の個数: 32

約数和(自身を含む): 31021056

約数和(自身を除く): 11159291

約数列:

[1, 5, 7, 11, 23, 35, 55, 77, 115, 161, 253, 385, 805, 1265, 1771, 2243, 8855, 11215, 15701, 24673, 51589, 78505, 123365, 172711, 257945, 361123, 567479, 863555, 1805615, 2837395, 3972353, 19861765]

約数ペア:

[(1, 19861765), (5, 3972353), (7, 2837395), (11, 1805615), (23, 863555), (35, 567479), (55, 361123), (77, 257945), (115, 172711), (161, 123365), (253, 78505), (385, 51589), (805, 24673), (1265, 15701), (1771, 11215), (2243, 8855)]