20989296

素因数分解:

$2^4\times 3^2\times {\mathrm{145759}}^1$

素因数の和:145773

約数の個数: 30

約数和(自身を含む): 58741280

約数和(自身を除く): 37751984

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 145759, 291518, 437277, 583036, 874554, 1166072, 1311831, 1749108, 2332144, 2623662, 3498216, 5247324, 6996432, 10494648, 20989296]

約数ペア:

[(1, 20989296), (2, 10494648), (3, 6996432), (4, 5247324), (6, 3498216), (8, 2623662), (9, 2332144), (12, 1749108), (16, 1311831), (18, 1166072), (24, 874554), (36, 583036), (48, 437277), (72, 291518), (144, 145759)]