21657636

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{601}}^1$

素因数の和:642

約数の個数: 144

約数和(自身を含む): 73627008

約数和(自身を除く): 51969372

約数列:

[1, 2, 3, 4, 6, 7, 9, 11, 12, 13, 14, 18, 21, 22, 26, 28, 33, 36, 39, 42, 44, 52, 63, 66, 77, 78, 84, 91, 99, 117, 126, 132, 143, 154, 156, 182, 198, 231, 234, 252, 273, 286, 308, 364, 396, 429, 462, 468, 546, 572, 601, 693, 819, 858, 924, 1001, 1092, 1202, 1287, 1386, 1638, 1716, 1803, 2002, 2404, 2574, 2772, 3003, 3276, 3606, 4004, 4207, 5148, 5409, 6006, 6611, 7212, 7813, 8414, 9009, 10818, 12012, 12621, 13222, 15626, 16828, 18018, 19833, 21636, 23439, 25242, 26444, 31252, 36036, 37863, 39666, 46277, 46878, 50484, 54691, 59499, 70317, 75726, 79332, 85943, 92554, 93756, 109382, 118998, 138831, 140634, 151452, 164073, 171886, 185108, 218764, 237996, 257829, 277662, 281268, 328146, 343772, 416493, 492219, 515658, 555324, 601601, 656292, 773487, 832986, 984438, 1031316, 1203202, 1546974, 1665972, 1804803, 1968876, 2406404, 3093948, 3609606, 5414409, 7219212, 10828818, 21657636]

約数ペア:

[(1, 21657636), (2, 10828818), (3, 7219212), (4, 5414409), (6, 3609606), (7, 3093948), (9, 2406404), (11, 1968876), (12, 1804803), (13, 1665972), (14, 1546974), (18, 1203202), (21, 1031316), (22, 984438), (26, 832986), (28, 773487), (33, 656292), (36, 601601), (39, 555324), (42, 515658), (44, 492219), (52, 416493), (63, 343772), (66, 328146), (77, 281268), (78, 277662), (84, 257829), (91, 237996), (99, 218764), (117, 185108), (126, 171886), (132, 164073), (143, 151452), (154, 140634), (156, 138831), (182, 118998), (198, 109382), (231, 93756), (234, 92554), (252, 85943), (273, 79332), (286, 75726), (308, 70317), (364, 59499), (396, 54691), (429, 50484), (462, 46878), (468, 46277), (546, 39666), (572, 37863), (601, 36036), (693, 31252), (819, 26444), (858, 25242), (924, 23439), (1001, 21636), (1092, 19833), (1202, 18018), (1287, 16828), (1386, 15626), (1638, 13222), (1716, 12621), (1803, 12012), (2002, 10818), (2404, 9009), (2574, 8414), (2772, 7813), (3003, 7212), (3276, 6611), (3606, 6006), (4004, 5409), (4207, 5148)]