21353358

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{8831}}^1$

素因数の和:8880

約数の個数: 32

約数和(自身を含む): 47480832

約数和(自身を除く): 26127474

約数列:

[1, 2, 3, 6, 13, 26, 31, 39, 62, 78, 93, 186, 403, 806, 1209, 2418, 8831, 17662, 26493, 52986, 114803, 229606, 273761, 344409, 547522, 688818, 821283, 1642566, 3558893, 7117786, 10676679, 21353358]

約数ペア:

[(1, 21353358), (2, 10676679), (3, 7117786), (6, 3558893), (13, 1642566), (26, 821283), (31, 688818), (39, 547522), (62, 344409), (78, 273761), (93, 229606), (186, 114803), (403, 52986), (806, 26493), (1209, 17662), (2418, 8831)]