21799001812

素因数分解:

$2^2\times 7^2\times {\mathrm{67}}^1\times {\mathrm{823}}^1\times {\mathrm{2017}}^1$

素因数の和:2925

約数の個数: 72

約数和(自身を含む): 45115957824

約数和(自身を除く): 23316956012

約数列:

[1, 2, 4, 7, 14, 28, 49, 67, 98, 134, 196, 268, 469, 823, 938, 1646, 1876, 2017, 3283, 3292, 4034, 5761, 6566, 8068, 11522, 13132, 14119, 23044, 28238, 40327, 55141, 56476, 80654, 98833, 110282, 135139, 161308, 197666, 220564, 270278, 385987, 395332, 540556, 771974, 945973, 1543948, 1659991, 1891946, 2701909, 3319982, 3783892, 5403818, 6621811, 6639964, 10807636, 11619937, 13243622, 23239874, 26487244, 46479748, 81339559, 111219397, 162679118, 222438794, 325358236, 444877588, 778535779, 1557071558, 3114143116, 5449750453, 10899500906, 21799001812]

約数ペア:

[(1, 21799001812), (2, 10899500906), (4, 5449750453), (7, 3114143116), (14, 1557071558), (28, 778535779), (49, 444877588), (67, 325358236), (98, 222438794), (134, 162679118), (196, 111219397), (268, 81339559), (469, 46479748), (823, 26487244), (938, 23239874), (1646, 13243622), (1876, 11619937), (2017, 10807636), (3283, 6639964), (3292, 6621811), (4034, 5403818), (5761, 3783892), (6566, 3319982), (8068, 2701909), (11522, 1891946), (13132, 1659991), (14119, 1543948), (23044, 945973), (28238, 771974), (40327, 540556), (55141, 395332), (56476, 385987), (80654, 270278), (98833, 220564), (110282, 197666), (135139, 161308)]