19816668

素因数分解:

$2^2\times 3^2\times {\mathrm{71}}^1\times {\mathrm{7753}}^1$

素因数の和:7834

約数の個数: 36

約数和(自身を含む): 50804208

約数和(自身を除く): 30987540

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 71, 142, 213, 284, 426, 639, 852, 1278, 2556, 7753, 15506, 23259, 31012, 46518, 69777, 93036, 139554, 279108, 550463, 1100926, 1651389, 2201852, 3302778, 4954167, 6605556, 9908334, 19816668]

約数ペア:

[(1, 19816668), (2, 9908334), (3, 6605556), (4, 4954167), (6, 3302778), (9, 2201852), (12, 1651389), (18, 1100926), (36, 550463), (71, 279108), (142, 139554), (213, 93036), (284, 69777), (426, 46518), (639, 31012), (852, 23259), (1278, 15506), (2556, 7753)]