20969208

素因数分解:

$2^3\times 3^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{521}}^1$

素因数の和:589

約数の個数: 96

約数和(自身を含む): 62702640

約数和(自身を除く): 41733432

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 36, 39, 43, 52, 72, 78, 86, 104, 117, 129, 156, 172, 234, 258, 312, 344, 387, 468, 516, 521, 559, 774, 936, 1032, 1042, 1118, 1548, 1563, 1677, 2084, 2236, 3096, 3126, 3354, 4168, 4472, 4689, 5031, 6252, 6708, 6773, 9378, 10062, 12504, 13416, 13546, 18756, 20124, 20319, 22403, 27092, 37512, 40248, 40638, 44806, 54184, 60957, 67209, 81276, 89612, 121914, 134418, 162552, 179224, 201627, 243828, 268836, 291239, 403254, 487656, 537672, 582478, 806508, 873717, 1164956, 1613016, 1747434, 2329912, 2621151, 3494868, 5242302, 6989736, 10484604, 20969208]

約数ペア:

[(1, 20969208), (2, 10484604), (3, 6989736), (4, 5242302), (6, 3494868), (8, 2621151), (9, 2329912), (12, 1747434), (13, 1613016), (18, 1164956), (24, 873717), (26, 806508), (36, 582478), (39, 537672), (43, 487656), (52, 403254), (72, 291239), (78, 268836), (86, 243828), (104, 201627), (117, 179224), (129, 162552), (156, 134418), (172, 121914), (234, 89612), (258, 81276), (312, 67209), (344, 60957), (387, 54184), (468, 44806), (516, 40638), (521, 40248), (559, 37512), (774, 27092), (936, 22403), (1032, 20319), (1042, 20124), (1118, 18756), (1548, 13546), (1563, 13416), (1677, 12504), (2084, 10062), (2236, 9378), (3096, 6773), (3126, 6708), (3354, 6252), (4168, 5031), (4472, 4689)]