19183905

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{643}}^1$

素因数の和:687

約数の個数: 64

約数和(自身を含む): 38949120

約数和(自身を除く): 19765215

約数列:

[1, 3, 5, 9, 13, 15, 17, 27, 39, 45, 51, 65, 85, 117, 135, 153, 195, 221, 255, 351, 459, 585, 643, 663, 765, 1105, 1755, 1929, 1989, 2295, 3215, 3315, 5787, 5967, 8359, 9645, 9945, 10931, 17361, 25077, 28935, 29835, 32793, 41795, 54655, 75231, 86805, 98379, 125385, 142103, 163965, 225693, 295137, 376155, 426309, 491895, 710515, 1128465, 1278927, 1475685, 2131545, 3836781, 6394635, 19183905]

約数ペア:

[(1, 19183905), (3, 6394635), (5, 3836781), (9, 2131545), (13, 1475685), (15, 1278927), (17, 1128465), (27, 710515), (39, 491895), (45, 426309), (51, 376155), (65, 295137), (85, 225693), (117, 163965), (135, 142103), (153, 125385), (195, 98379), (221, 86805), (255, 75231), (351, 54655), (459, 41795), (585, 32793), (643, 29835), (663, 28935), (765, 25077), (1105, 17361), (1755, 10931), (1929, 9945), (1989, 9645), (2295, 8359), (3215, 5967), (3315, 5787)]