19906593

素因数分解:

$3^1\times 7^2\times {\mathrm{191}}^1\times {\mathrm{709}}^1$

素因数の和:917

約数の個数: 24

約数和(自身を含む): 31080960

約数和(自身を除く): 11174367

約数列:

[1, 3, 7, 21, 49, 147, 191, 573, 709, 1337, 2127, 4011, 4963, 9359, 14889, 28077, 34741, 104223, 135419, 406257, 947933, 2843799, 6635531, 19906593]

約数ペア:

[(1, 19906593), (3, 6635531), (7, 2843799), (21, 947933), (49, 406257), (147, 135419), (191, 104223), (573, 34741), (709, 28077), (1337, 14889), (2127, 9359), (4011, 4963)]