21285814

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{50923}}^1$

素因数の和:50955

約数の個数: 16

約数和(自身を含む): 36665280

約数和(自身を除く): 15379466

約数列:

[1, 2, 11, 19, 22, 38, 209, 418, 50923, 101846, 560153, 967537, 1120306, 1935074, 10642907, 21285814]

約数ペア:

[(1, 21285814), (2, 10642907), (11, 1935074), (19, 1120306), (22, 967537), (38, 560153), (209, 101846), (418, 50923)]