20816838

素因数分解:

$2^1\times 3^5\times 7^1\times {\mathrm{29}}^1\times {\mathrm{211}}^1$

素因数の和:264

約数の個数: 96

約数和(自身を含む): 55560960

約数和(自身を除く): 34744122

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 29, 42, 54, 58, 63, 81, 87, 126, 162, 174, 189, 203, 211, 243, 261, 378, 406, 422, 486, 522, 567, 609, 633, 783, 1134, 1218, 1266, 1477, 1566, 1701, 1827, 1899, 2349, 2954, 3402, 3654, 3798, 4431, 4698, 5481, 5697, 6119, 7047, 8862, 10962, 11394, 12238, 13293, 14094, 16443, 17091, 18357, 26586, 32886, 34182, 36714, 39879, 42833, 49329, 51273, 55071, 79758, 85666, 98658, 102546, 110142, 119637, 128499, 165213, 239274, 256998, 330426, 358911, 385497, 495639, 717822, 770994, 991278, 1156491, 1486917, 2312982, 2973834, 3469473, 6938946, 10408419, 20816838]

約数ペア:

[(1, 20816838), (2, 10408419), (3, 6938946), (6, 3469473), (7, 2973834), (9, 2312982), (14, 1486917), (18, 1156491), (21, 991278), (27, 770994), (29, 717822), (42, 495639), (54, 385497), (58, 358911), (63, 330426), (81, 256998), (87, 239274), (126, 165213), (162, 128499), (174, 119637), (189, 110142), (203, 102546), (211, 98658), (243, 85666), (261, 79758), (378, 55071), (406, 51273), (422, 49329), (486, 42833), (522, 39879), (567, 36714), (609, 34182), (633, 32886), (783, 26586), (1134, 18357), (1218, 17091), (1266, 16443), (1477, 14094), (1566, 13293), (1701, 12238), (1827, 11394), (1899, 10962), (2349, 8862), (2954, 7047), (3402, 6119), (3654, 5697), (3798, 5481), (4431, 4698)]