15665643

素因数分解:

$3^4\times 7^2\times {\mathrm{3947}}^1$

素因数の和:3973

約数の個数: 30

約数和(自身を含む): 27229356

約数和(自身を除く): 11563713

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 441, 567, 1323, 3947, 3969, 11841, 27629, 35523, 82887, 106569, 193403, 248661, 319707, 580209, 745983, 1740627, 2237949, 5221881, 15665643]

約数ペア:

[(1, 15665643), (3, 5221881), (7, 2237949), (9, 1740627), (21, 745983), (27, 580209), (49, 319707), (63, 248661), (81, 193403), (147, 106569), (189, 82887), (441, 35523), (567, 27629), (1323, 11841), (3947, 3969)]