20875428

素因数分解:

$2^2\times 3^3\times 7^1\times {\mathrm{53}}^1\times {\mathrm{521}}^1$

素因数の和:594

約数の個数: 96

約数和(自身を含む): 63141120

約数和(自身を除く): 42265692

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 53, 54, 63, 84, 106, 108, 126, 159, 189, 212, 252, 318, 371, 378, 477, 521, 636, 742, 756, 954, 1042, 1113, 1431, 1484, 1563, 1908, 2084, 2226, 2862, 3126, 3339, 3647, 4452, 4689, 5724, 6252, 6678, 7294, 9378, 10017, 10941, 13356, 14067, 14588, 18756, 20034, 21882, 27613, 28134, 32823, 40068, 43764, 55226, 56268, 65646, 82839, 98469, 110452, 131292, 165678, 193291, 196938, 248517, 331356, 386582, 393876, 497034, 579873, 745551, 773164, 994068, 1159746, 1491102, 1739619, 2319492, 2982204, 3479238, 5218857, 6958476, 10437714, 20875428]

約数ペア:

[(1, 20875428), (2, 10437714), (3, 6958476), (4, 5218857), (6, 3479238), (7, 2982204), (9, 2319492), (12, 1739619), (14, 1491102), (18, 1159746), (21, 994068), (27, 773164), (28, 745551), (36, 579873), (42, 497034), (53, 393876), (54, 386582), (63, 331356), (84, 248517), (106, 196938), (108, 193291), (126, 165678), (159, 131292), (189, 110452), (212, 98469), (252, 82839), (318, 65646), (371, 56268), (378, 55226), (477, 43764), (521, 40068), (636, 32823), (742, 28134), (756, 27613), (954, 21882), (1042, 20034), (1113, 18756), (1431, 14588), (1484, 14067), (1563, 13356), (1908, 10941), (2084, 10017), (2226, 9378), (2862, 7294), (3126, 6678), (3339, 6252), (3647, 5724), (4452, 4689)]