19728495

素因数分解:

$3^3\times 5^1\times {\mathrm{317}}^1\times {\mathrm{461}}^1$

素因数の和:792

約数の個数: 32

約数和(自身を含む): 35259840

約数和(自身を除く): 15531345

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 317, 461, 951, 1383, 1585, 2305, 2853, 4149, 4755, 6915, 8559, 12447, 14265, 20745, 42795, 62235, 146137, 438411, 730685, 1315233, 2192055, 3945699, 6576165, 19728495]

約数ペア:

[(1, 19728495), (3, 6576165), (5, 3945699), (9, 2192055), (15, 1315233), (27, 730685), (45, 438411), (135, 146137), (317, 62235), (461, 42795), (951, 20745), (1383, 14265), (1585, 12447), (2305, 8559), (2853, 6915), (4149, 4755)]