21979188

素因数分解:

$2^2\times 3^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{881}}^1$

素因数の和:915

約数の個数: 120

約数和(自身を含む): 71717184

約数和(自身を除く): 49737996

約数列:

[1, 2, 3, 4, 6, 7, 9, 11, 12, 14, 18, 21, 22, 27, 28, 33, 36, 42, 44, 54, 63, 66, 77, 81, 84, 99, 108, 126, 132, 154, 162, 189, 198, 231, 252, 297, 308, 324, 378, 396, 462, 567, 594, 693, 756, 881, 891, 924, 1134, 1188, 1386, 1762, 1782, 2079, 2268, 2643, 2772, 3524, 3564, 4158, 5286, 6167, 6237, 7929, 8316, 9691, 10572, 12334, 12474, 15858, 18501, 19382, 23787, 24668, 24948, 29073, 31716, 37002, 38764, 47574, 55503, 58146, 67837, 71361, 74004, 87219, 95148, 111006, 116292, 135674, 142722, 166509, 174438, 203511, 222012, 261657, 271348, 285444, 333018, 348876, 407022, 499527, 523314, 610533, 666036, 784971, 814044, 999054, 1046628, 1221066, 1569942, 1831599, 1998108, 2442132, 3139884, 3663198, 5494797, 7326396, 10989594, 21979188]

約数ペア:

[(1, 21979188), (2, 10989594), (3, 7326396), (4, 5494797), (6, 3663198), (7, 3139884), (9, 2442132), (11, 1998108), (12, 1831599), (14, 1569942), (18, 1221066), (21, 1046628), (22, 999054), (27, 814044), (28, 784971), (33, 666036), (36, 610533), (42, 523314), (44, 499527), (54, 407022), (63, 348876), (66, 333018), (77, 285444), (81, 271348), (84, 261657), (99, 222012), (108, 203511), (126, 174438), (132, 166509), (154, 142722), (162, 135674), (189, 116292), (198, 111006), (231, 95148), (252, 87219), (297, 74004), (308, 71361), (324, 67837), (378, 58146), (396, 55503), (462, 47574), (567, 38764), (594, 37002), (693, 31716), (756, 29073), (881, 24948), (891, 24668), (924, 23787), (1134, 19382), (1188, 18501), (1386, 15858), (1762, 12474), (1782, 12334), (2079, 10572), (2268, 9691), (2643, 8316), (2772, 7929), (3524, 6237), (3564, 6167), (4158, 5286)]