21871404

素因数分解:

$2^2\times 3^3\times {\mathrm{53}}^1\times {\mathrm{3821}}^1$

素因数の和:3887

約数の個数: 48

約数和(自身を含む): 57788640

約数和(自身を除く): 35917236

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 53, 54, 106, 108, 159, 212, 318, 477, 636, 954, 1431, 1908, 2862, 3821, 5724, 7642, 11463, 15284, 22926, 34389, 45852, 68778, 103167, 137556, 202513, 206334, 405026, 412668, 607539, 810052, 1215078, 1822617, 2430156, 3645234, 5467851, 7290468, 10935702, 21871404]

約数ペア:

[(1, 21871404), (2, 10935702), (3, 7290468), (4, 5467851), (6, 3645234), (9, 2430156), (12, 1822617), (18, 1215078), (27, 810052), (36, 607539), (53, 412668), (54, 405026), (106, 206334), (108, 202513), (159, 137556), (212, 103167), (318, 68778), (477, 45852), (636, 34389), (954, 22926), (1431, 15284), (1908, 11463), (2862, 7642), (3821, 5724)]