21710206

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{191}}^1\times {\mathrm{353}}^1$

素因数の和:576

約数の個数: 32

約数和(自身を含む): 39149568

約数和(自身を除く): 17439362

約数列:

[1, 2, 7, 14, 23, 46, 161, 191, 322, 353, 382, 706, 1337, 2471, 2674, 4393, 4942, 8119, 8786, 16238, 30751, 56833, 61502, 67423, 113666, 134846, 471961, 943922, 1550729, 3101458, 10855103, 21710206]

約数ペア:

[(1, 21710206), (2, 10855103), (7, 3101458), (14, 1550729), (23, 943922), (46, 471961), (161, 134846), (191, 113666), (322, 67423), (353, 61502), (382, 56833), (706, 30751), (1337, 16238), (2471, 8786), (2674, 8119), (4393, 4942)]