20898774

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1$

素因数の和:162

約数の個数: 96

約数和(自身を含む): 52276224

約数和(自身を除く): 31377450

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 31, 39, 43, 62, 67, 78, 86, 93, 117, 129, 134, 186, 201, 234, 258, 279, 387, 402, 403, 558, 559, 603, 774, 806, 871, 1118, 1206, 1209, 1333, 1677, 1742, 2077, 2418, 2613, 2666, 2881, 3354, 3627, 3999, 4154, 5031, 5226, 5762, 6231, 7254, 7839, 7998, 8643, 10062, 11997, 12462, 15678, 17286, 17329, 18693, 23994, 25929, 27001, 34658, 37386, 37453, 51858, 51987, 54002, 74906, 81003, 89311, 103974, 112359, 155961, 162006, 178622, 224718, 243009, 267933, 311922, 337077, 486018, 535866, 674154, 803799, 1161043, 1607598, 2322086, 3483129, 6966258, 10449387, 20898774]

約数ペア:

[(1, 20898774), (2, 10449387), (3, 6966258), (6, 3483129), (9, 2322086), (13, 1607598), (18, 1161043), (26, 803799), (31, 674154), (39, 535866), (43, 486018), (62, 337077), (67, 311922), (78, 267933), (86, 243009), (93, 224718), (117, 178622), (129, 162006), (134, 155961), (186, 112359), (201, 103974), (234, 89311), (258, 81003), (279, 74906), (387, 54002), (402, 51987), (403, 51858), (558, 37453), (559, 37386), (603, 34658), (774, 27001), (806, 25929), (871, 23994), (1118, 18693), (1206, 17329), (1209, 17286), (1333, 15678), (1677, 12462), (1742, 11997), (2077, 10062), (2418, 8643), (2613, 7998), (2666, 7839), (2881, 7254), (3354, 6231), (3627, 5762), (3999, 5226), (4154, 5031)]