20863035

素因数分解:

$3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{73}}^2$

素因数の和:189

約数の個数: 48

約数和(自身を含む): 38901600

約数和(自身を除く): 18038565

約数列:

[1, 3, 5, 9, 15, 27, 29, 45, 73, 87, 135, 145, 219, 261, 365, 435, 657, 783, 1095, 1305, 1971, 2117, 3285, 3915, 5329, 6351, 9855, 10585, 15987, 19053, 26645, 31755, 47961, 57159, 79935, 95265, 143883, 154541, 239805, 285795, 463623, 719415, 772705, 1390869, 2318115, 4172607, 6954345, 20863035]

約数ペア:

[(1, 20863035), (3, 6954345), (5, 4172607), (9, 2318115), (15, 1390869), (27, 772705), (29, 719415), (45, 463623), (73, 285795), (87, 239805), (135, 154541), (145, 143883), (219, 95265), (261, 79935), (365, 57159), (435, 47961), (657, 31755), (783, 26645), (1095, 19053), (1305, 15987), (1971, 10585), (2117, 9855), (3285, 6351), (3915, 5329)]