21685587

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13411}}^1$

素因数の和:13439

約数の個数: 24

約数和(自身を含む): 36695232

約数和(自身を除く): 15009645

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 147, 231, 539, 1617, 13411, 40233, 93877, 147521, 281631, 442563, 657139, 1032647, 1971417, 3097941, 7228529, 21685587]

約数ペア:

[(1, 21685587), (3, 7228529), (7, 3097941), (11, 1971417), (21, 1032647), (33, 657139), (49, 442563), (77, 281631), (147, 147521), (231, 93877), (539, 40233), (1617, 13411)]