21315723

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{4517}}^1$

素因数の和:4555

約数の個数: 24

約数和(自身を含む): 33650064

約数和(自身を除く): 12334341

約数列:

[1, 3, 11, 13, 33, 39, 121, 143, 363, 429, 1573, 4517, 4719, 13551, 49687, 58721, 149061, 176163, 546557, 645931, 1639671, 1937793, 7105241, 21315723]

約数ペア:

[(1, 21315723), (3, 7105241), (11, 1937793), (13, 1639671), (33, 645931), (39, 546557), (121, 176163), (143, 149061), (363, 58721), (429, 49687), (1573, 13551), (4517, 4719)]