20986812

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{113}}^1$

素因数の和:208

約数の個数: 144

約数和(自身を含む): 67721472

約数和(自身を除く): 46734660

約数列:

[1, 2, 3, 4, 6, 7, 9, 11, 12, 14, 18, 21, 22, 28, 33, 36, 42, 44, 63, 66, 67, 77, 84, 99, 113, 126, 132, 134, 154, 198, 201, 226, 231, 252, 268, 308, 339, 396, 402, 452, 462, 469, 603, 678, 693, 737, 791, 804, 924, 938, 1017, 1206, 1243, 1356, 1386, 1407, 1474, 1582, 1876, 2034, 2211, 2373, 2412, 2486, 2772, 2814, 2948, 3164, 3729, 4068, 4221, 4422, 4746, 4972, 5159, 5628, 6633, 7119, 7458, 7571, 8442, 8701, 8844, 9492, 10318, 11187, 13266, 14238, 14916, 15142, 15477, 16884, 17402, 20636, 22374, 22713, 26103, 26532, 28476, 30284, 30954, 34804, 44748, 45426, 46431, 52206, 52997, 61908, 68139, 78309, 83281, 90852, 92862, 104412, 105994, 136278, 156618, 158991, 166562, 185724, 211988, 249843, 272556, 313236, 317982, 333124, 476973, 499686, 582967, 635964, 749529, 953946, 999372, 1165934, 1499058, 1748901, 1907892, 2331868, 2998116, 3497802, 5246703, 6995604, 10493406, 20986812]

約数ペア:

[(1, 20986812), (2, 10493406), (3, 6995604), (4, 5246703), (6, 3497802), (7, 2998116), (9, 2331868), (11, 1907892), (12, 1748901), (14, 1499058), (18, 1165934), (21, 999372), (22, 953946), (28, 749529), (33, 635964), (36, 582967), (42, 499686), (44, 476973), (63, 333124), (66, 317982), (67, 313236), (77, 272556), (84, 249843), (99, 211988), (113, 185724), (126, 166562), (132, 158991), (134, 156618), (154, 136278), (198, 105994), (201, 104412), (226, 92862), (231, 90852), (252, 83281), (268, 78309), (308, 68139), (339, 61908), (396, 52997), (402, 52206), (452, 46431), (462, 45426), (469, 44748), (603, 34804), (678, 30954), (693, 30284), (737, 28476), (791, 26532), (804, 26103), (924, 22713), (938, 22374), (1017, 20636), (1206, 17402), (1243, 16884), (1356, 15477), (1386, 15142), (1407, 14916), (1474, 14238), (1582, 13266), (1876, 11187), (2034, 10318), (2211, 9492), (2373, 8844), (2412, 8701), (2486, 8442), (2772, 7571), (2814, 7458), (2948, 7119), (3164, 6633), (3729, 5628), (4068, 5159), (4221, 4972), (4422, 4746)]