21087948

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{181}}^1$

素因数の和:287

約数の個数: 96

約数和(自身を含む): 60336640

約数和(自身を除く): 39248692

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 19, 21, 28, 38, 42, 57, 73, 76, 84, 114, 133, 146, 181, 219, 228, 266, 292, 362, 399, 438, 511, 532, 543, 724, 798, 876, 1022, 1086, 1267, 1387, 1533, 1596, 2044, 2172, 2534, 2774, 3066, 3439, 3801, 4161, 5068, 5548, 6132, 6878, 7602, 8322, 9709, 10317, 13213, 13756, 15204, 16644, 19418, 20634, 24073, 26426, 29127, 38836, 39639, 41268, 48146, 52852, 58254, 72219, 79278, 92491, 96292, 116508, 144438, 158556, 184982, 251047, 277473, 288876, 369964, 502094, 554946, 753141, 1004188, 1109892, 1506282, 1757329, 3012564, 3514658, 5271987, 7029316, 10543974, 21087948]

約数ペア:

[(1, 21087948), (2, 10543974), (3, 7029316), (4, 5271987), (6, 3514658), (7, 3012564), (12, 1757329), (14, 1506282), (19, 1109892), (21, 1004188), (28, 753141), (38, 554946), (42, 502094), (57, 369964), (73, 288876), (76, 277473), (84, 251047), (114, 184982), (133, 158556), (146, 144438), (181, 116508), (219, 96292), (228, 92491), (266, 79278), (292, 72219), (362, 58254), (399, 52852), (438, 48146), (511, 41268), (532, 39639), (543, 38836), (724, 29127), (798, 26426), (876, 24073), (1022, 20634), (1086, 19418), (1267, 16644), (1387, 15204), (1533, 13756), (1596, 13213), (2044, 10317), (2172, 9709), (2534, 8322), (2774, 7602), (3066, 6878), (3439, 6132), (3801, 5548), (4161, 5068)]