20906091

素因数分解:

$3^2\times {\mathrm{101}}^1\times {\mathrm{109}}^1\times {\mathrm{211}}^1$

素因数の和:427

約数の個数: 24

約数和(自身を含む): 30922320

約数和(自身を除く): 10016229

約数列:

[1, 3, 9, 101, 109, 211, 303, 327, 633, 909, 981, 1899, 11009, 21311, 22999, 33027, 63933, 68997, 99081, 191799, 206991, 2322899, 6968697, 20906091]

約数ペア:

[(1, 20906091), (3, 6968697), (9, 2322899), (101, 206991), (109, 191799), (211, 99081), (303, 68997), (327, 63933), (633, 33027), (909, 22999), (981, 21311), (1899, 11009)]