21601520

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{9311}}^1$

素因数の和:9353

約数の個数: 40

約数和(自身を含む): 51960960

約数和(自身を除く): 30359440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 232, 290, 464, 580, 1160, 2320, 9311, 18622, 37244, 46555, 74488, 93110, 148976, 186220, 270019, 372440, 540038, 744880, 1080076, 1350095, 2160152, 2700190, 4320304, 5400380, 10800760, 21601520]

約数ペア:

[(1, 21601520), (2, 10800760), (4, 5400380), (5, 4320304), (8, 2700190), (10, 2160152), (16, 1350095), (20, 1080076), (29, 744880), (40, 540038), (58, 372440), (80, 270019), (116, 186220), (145, 148976), (232, 93110), (290, 74488), (464, 46555), (580, 37244), (1160, 18622), (2320, 9311)]