21430318

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{1613}}^1$

素因数の和:1708

約数の個数: 32

約数和(自身を含む): 40130496

約数和(自身を除く): 18700178

約数列:

[1, 2, 7, 13, 14, 26, 73, 91, 146, 182, 511, 949, 1022, 1613, 1898, 3226, 6643, 11291, 13286, 20969, 22582, 41938, 117749, 146783, 235498, 293566, 824243, 1530737, 1648486, 3061474, 10715159, 21430318]

約数ペア:

[(1, 21430318), (2, 10715159), (7, 3061474), (13, 1648486), (14, 1530737), (26, 824243), (73, 293566), (91, 235498), (146, 146783), (182, 117749), (511, 41938), (949, 22582), (1022, 20969), (1613, 13286), (1898, 11291), (3226, 6643)]