81521595

素因数分解:

$3^2\times 5^1\times {\mathrm{659}}^1\times {\mathrm{2749}}^1$

素因数の和:3419

約数の個数: 24

約数和(自身を含む): 141570000

約数和(自身を除く): 60048405

約数列:

[1, 3, 5, 9, 15, 45, 659, 1977, 2749, 3295, 5931, 8247, 9885, 13745, 24741, 29655, 41235, 123705, 1811591, 5434773, 9057955, 16304319, 27173865, 81521595]

約数ペア:

[(1, 81521595), (3, 27173865), (5, 16304319), (9, 9057955), (15, 5434773), (45, 1811591), (659, 123705), (1977, 41235), (2749, 29655), (3295, 24741), (5931, 13745), (8247, 9885)]