20584788

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1$

素因数の和:237

約数の個数: 96

約数和(自身を含む): 57953280

約数和(自身を除く): 37368492

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 41, 42, 43, 82, 84, 86, 123, 129, 139, 164, 172, 246, 258, 278, 287, 301, 417, 492, 516, 556, 574, 602, 834, 861, 903, 973, 1148, 1204, 1668, 1722, 1763, 1806, 1946, 2919, 3444, 3526, 3612, 3892, 5289, 5699, 5838, 5977, 7052, 10578, 11398, 11676, 11954, 12341, 17097, 17931, 21156, 22796, 23908, 24682, 34194, 35862, 37023, 39893, 41839, 49364, 68388, 71724, 74046, 79786, 83678, 119679, 125517, 148092, 159572, 167356, 239358, 245057, 251034, 478716, 490114, 502068, 735171, 980228, 1470342, 1715399, 2940684, 3430798, 5146197, 6861596, 10292394, 20584788]

約数ペア:

[(1, 20584788), (2, 10292394), (3, 6861596), (4, 5146197), (6, 3430798), (7, 2940684), (12, 1715399), (14, 1470342), (21, 980228), (28, 735171), (41, 502068), (42, 490114), (43, 478716), (82, 251034), (84, 245057), (86, 239358), (123, 167356), (129, 159572), (139, 148092), (164, 125517), (172, 119679), (246, 83678), (258, 79786), (278, 74046), (287, 71724), (301, 68388), (417, 49364), (492, 41839), (516, 39893), (556, 37023), (574, 35862), (602, 34194), (834, 24682), (861, 23908), (903, 22796), (973, 21156), (1148, 17931), (1204, 17097), (1668, 12341), (1722, 11954), (1763, 11676), (1806, 11398), (1946, 10578), (2919, 7052), (3444, 5977), (3526, 5838), (3612, 5699), (3892, 5289)]