21481803

素因数分解:

$3^2\times 7^1\times {\mathrm{229}}^1\times {\mathrm{1489}}^1$

素因数の和:1731

約数の個数: 24

約数和(自身を含む): 35640800

約数和(自身を除く): 14158997

約数列:

[1, 3, 7, 9, 21, 63, 229, 687, 1489, 1603, 2061, 4467, 4809, 10423, 13401, 14427, 31269, 93807, 340981, 1022943, 2386867, 3068829, 7160601, 21481803]

約数ペア:

[(1, 21481803), (3, 7160601), (7, 3068829), (9, 2386867), (21, 1022943), (63, 340981), (229, 93807), (687, 31269), (1489, 14427), (1603, 13401), (2061, 10423), (4467, 4809)]