20113515

素因数分解:

$3^4\times 5^1\times {\mathrm{49663}}^1$

素因数の和:49680

約数の個数: 20

約数和(自身を含む): 36056064

約数和(自身を除く): 15942549

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 49663, 148989, 248315, 446967, 744945, 1340901, 2234835, 4022703, 6704505, 20113515]

約数ペア:

[(1, 20113515), (3, 6704505), (5, 4022703), (9, 2234835), (15, 1340901), (27, 744945), (45, 446967), (81, 248315), (135, 148989), (405, 49663)]