21863187

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{211}}^1\times {\mathrm{397}}^1$

素因数の和:643

約数の個数: 24

約数和(自身を含む): 32906640

約数和(自身を除く): 11043453

約数列:

[1, 3, 9, 29, 87, 211, 261, 397, 633, 1191, 1899, 3573, 6119, 11513, 18357, 34539, 55071, 83767, 103617, 251301, 753903, 2429243, 7287729, 21863187]

約数ペア:

[(1, 21863187), (3, 7287729), (9, 2429243), (29, 753903), (87, 251301), (211, 103617), (261, 83767), (397, 55071), (633, 34539), (1191, 18357), (1899, 11513), (3573, 6119)]