20954703

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{12959}}^1$

素因数の和:12987

約数の個数: 24

約数和(自身を含む): 35458560

約数和(自身を除く): 14503857

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 147, 231, 539, 1617, 12959, 38877, 90713, 142549, 272139, 427647, 634991, 997843, 1904973, 2993529, 6984901, 20954703]

約数ペア:

[(1, 20954703), (3, 6984901), (7, 2993529), (11, 1904973), (21, 997843), (33, 634991), (49, 427647), (77, 272139), (147, 142549), (231, 90713), (539, 38877), (1617, 12959)]