21968223

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{347}}^1\times {\mathrm{449}}^1$

素因数の和:846

約数の個数: 16

約数和(自身を含む): 30067200

約数和(自身を除く): 8098977

約数列:

[1, 3, 47, 141, 347, 449, 1041, 1347, 16309, 21103, 48927, 63309, 155803, 467409, 7322741, 21968223]

約数ペア:

[(1, 21968223), (3, 7322741), (47, 467409), (141, 155803), (347, 63309), (449, 48927), (1041, 21103), (1347, 16309)]