21270886

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{1601}}^1$

素因数の和:1696

約数の個数: 32

約数和(自身を含む): 39832128

約数和(自身を除く): 18561242

約数列:

[1, 2, 7, 13, 14, 26, 73, 91, 146, 182, 511, 949, 1022, 1601, 1898, 3202, 6643, 11207, 13286, 20813, 22414, 41626, 116873, 145691, 233746, 291382, 818111, 1519349, 1636222, 3038698, 10635443, 21270886]

約数ペア:

[(1, 21270886), (2, 10635443), (7, 3038698), (13, 1636222), (14, 1519349), (26, 818111), (73, 291382), (91, 233746), (146, 145691), (182, 116873), (511, 41626), (949, 22414), (1022, 20813), (1601, 13286), (1898, 11207), (3202, 6643)]