21384990

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{21601}}^1$

素因数の和:21625

約数の個数: 48

約数和(自身を含む): 60658416

約数和(自身を除く): 39273426

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 165, 198, 330, 495, 990, 21601, 43202, 64803, 108005, 129606, 194409, 216010, 237611, 324015, 388818, 475222, 648030, 712833, 972045, 1188055, 1425666, 1944090, 2138499, 2376110, 3564165, 4276998, 7128330, 10692495, 21384990]

約数ペア:

[(1, 21384990), (2, 10692495), (3, 7128330), (5, 4276998), (6, 3564165), (9, 2376110), (10, 2138499), (11, 1944090), (15, 1425666), (18, 1188055), (22, 972045), (30, 712833), (33, 648030), (45, 475222), (55, 388818), (66, 324015), (90, 237611), (99, 216010), (110, 194409), (165, 129606), (198, 108005), (330, 64803), (495, 43202), (990, 21601)]