18999045

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{691}}^1$

素因数の和:762

約数の個数: 48

約数和(自身を含む): 36271872

約数和(自身を除く): 17272827

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 47, 65, 117, 141, 195, 235, 423, 585, 611, 691, 705, 1833, 2073, 2115, 3055, 3455, 5499, 6219, 8983, 9165, 10365, 26949, 27495, 31095, 32477, 44915, 80847, 97431, 134745, 162385, 292293, 404235, 422201, 487155, 1266603, 1461465, 2111005, 3799809, 6333015, 18999045]

約数ペア:

[(1, 18999045), (3, 6333015), (5, 3799809), (9, 2111005), (13, 1461465), (15, 1266603), (39, 487155), (45, 422201), (47, 404235), (65, 292293), (117, 162385), (141, 134745), (195, 97431), (235, 80847), (423, 44915), (585, 32477), (611, 31095), (691, 27495), (705, 26949), (1833, 10365), (2073, 9165), (2115, 8983), (3055, 6219), (3455, 5499)]