21017892

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{4721}}^1$

素因数の和:4788

約数の個数: 48

約数和(自身を含む): 57117312

約数和(自身を除く): 36099420

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 53, 84, 106, 159, 212, 318, 371, 636, 742, 1113, 1484, 2226, 4452, 4721, 9442, 14163, 18884, 28326, 33047, 56652, 66094, 99141, 132188, 198282, 250213, 396564, 500426, 750639, 1000852, 1501278, 1751491, 3002556, 3502982, 5254473, 7005964, 10508946, 21017892]

約数ペア:

[(1, 21017892), (2, 10508946), (3, 7005964), (4, 5254473), (6, 3502982), (7, 3002556), (12, 1751491), (14, 1501278), (21, 1000852), (28, 750639), (42, 500426), (53, 396564), (84, 250213), (106, 198282), (159, 132188), (212, 99141), (318, 66094), (371, 56652), (636, 33047), (742, 28326), (1113, 18884), (1484, 14163), (2226, 9442), (4452, 4721)]