21659979

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{31}}^2\times {\mathrm{683}}^1$

素因数の和:759

約数の個数: 24

約数和(自身を含む): 32602176

約数和(自身を除く): 10942197

約数列:

[1, 3, 11, 31, 33, 93, 341, 683, 961, 1023, 2049, 2883, 7513, 10571, 21173, 22539, 31713, 63519, 232903, 656363, 698709, 1969089, 7219993, 21659979]

約数ペア:

[(1, 21659979), (3, 7219993), (11, 1969089), (31, 698709), (33, 656363), (93, 232903), (341, 63519), (683, 31713), (961, 22539), (1023, 21173), (2049, 10571), (2883, 7513)]