21988428

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{449}}^1$

素因数の和:527

約数の個数: 96

約数和(自身を含む): 65318400

約数和(自身を除く): 43329972

約数列:

[1, 2, 3, 4, 6, 7, 11, 12, 14, 21, 22, 28, 33, 42, 44, 53, 66, 77, 84, 106, 132, 154, 159, 212, 231, 308, 318, 371, 449, 462, 583, 636, 742, 898, 924, 1113, 1166, 1347, 1484, 1749, 1796, 2226, 2332, 2694, 3143, 3498, 4081, 4452, 4939, 5388, 6286, 6996, 8162, 9429, 9878, 12243, 12572, 14817, 16324, 18858, 19756, 23797, 24486, 29634, 34573, 37716, 47594, 48972, 59268, 69146, 71391, 95188, 103719, 138292, 142782, 166579, 207438, 261767, 285564, 333158, 414876, 499737, 523534, 666316, 785301, 999474, 1047068, 1570602, 1832369, 1998948, 3141204, 3664738, 5497107, 7329476, 10994214, 21988428]

約数ペア:

[(1, 21988428), (2, 10994214), (3, 7329476), (4, 5497107), (6, 3664738), (7, 3141204), (11, 1998948), (12, 1832369), (14, 1570602), (21, 1047068), (22, 999474), (28, 785301), (33, 666316), (42, 523534), (44, 499737), (53, 414876), (66, 333158), (77, 285564), (84, 261767), (106, 207438), (132, 166579), (154, 142782), (159, 138292), (212, 103719), (231, 95188), (308, 71391), (318, 69146), (371, 59268), (449, 48972), (462, 47594), (583, 37716), (636, 34573), (742, 29634), (898, 24486), (924, 23797), (1113, 19756), (1166, 18858), (1347, 16324), (1484, 14817), (1749, 12572), (1796, 12243), (2226, 9878), (2332, 9429), (2694, 8162), (3143, 6996), (3498, 6286), (4081, 5388), (4452, 4939)]