18914013

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{463}}^1$

素因数の和:578

約数の個数: 32

約数和(自身を含む): 30067200

約数和(自身を除く): 11153187

約数列:

[1, 3, 9, 17, 27, 51, 89, 153, 267, 459, 463, 801, 1389, 1513, 2403, 4167, 4539, 7871, 12501, 13617, 23613, 40851, 41207, 70839, 123621, 212517, 370863, 700519, 1112589, 2101557, 6304671, 18914013]

約数ペア:

[(1, 18914013), (3, 6304671), (9, 2101557), (17, 1112589), (27, 700519), (51, 370863), (89, 212517), (153, 123621), (267, 70839), (459, 41207), (463, 40851), (801, 23613), (1389, 13617), (1513, 12501), (2403, 7871), (4167, 4539)]