20731788

素因数分解:

$2^2\times 3^5\times 7^1\times {\mathrm{11}}^1\times {\mathrm{277}}^1$

素因数の和:314

約数の個数: 144

約数和(自身を含む): 68001024

約数和(自身を除く): 47269236

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, 243, 252, 277, 297, 308, 324, 378, 396, 462, 486, 554, 567, 594, 693, 756, 831, 891, 924, 972, 1108, 1134, 1188, 1386, 1662, 1701, 1782, 1939, 2079, 2268, 2493, 2673, 2772, 3047, 3324, 3402, 3564, 3878, 4158, 4986, 5346, 5817, 6094, 6237, 6804, 7479, 7756, 8316, 9141, 9972, 10692, 11634, 12188, 12474, 14958, 17451, 18282, 18711, 21329, 22437, 23268, 24948, 27423, 29916, 34902, 36564, 37422, 42658, 44874, 52353, 54846, 63987, 67311, 69804, 74844, 82269, 85316, 89748, 104706, 109692, 127974, 134622, 157059, 164538, 191961, 209412, 246807, 255948, 269244, 314118, 329076, 383922, 471177, 493614, 575883, 628236, 740421, 767844, 942354, 987228, 1151766, 1480842, 1727649, 1884708, 2303532, 2961684, 3455298, 5182947, 6910596, 10365894, 20731788]

約数ペア:

[(1, 20731788), (2, 10365894), (3, 6910596), (4, 5182947), (6, 3455298), (7, 2961684), (9, 2303532), (11, 1884708), (12, 1727649), (14, 1480842), (18, 1151766), (21, 987228), (22, 942354), (27, 767844), (28, 740421), (33, 628236), (36, 575883), (42, 493614), (44, 471177), (54, 383922), (63, 329076), (66, 314118), (77, 269244), (81, 255948), (84, 246807), (99, 209412), (108, 191961), (126, 164538), (132, 157059), (154, 134622), (162, 127974), (189, 109692), (198, 104706), (231, 89748), (243, 85316), (252, 82269), (277, 74844), (297, 69804), (308, 67311), (324, 63987), (378, 54846), (396, 52353), (462, 44874), (486, 42658), (554, 37422), (567, 36564), (594, 34902), (693, 29916), (756, 27423), (831, 24948), (891, 23268), (924, 22437), (972, 21329), (1108, 18711), (1134, 18282), (1188, 17451), (1386, 14958), (1662, 12474), (1701, 12188), (1782, 11634), (1939, 10692), (2079, 9972), (2268, 9141), (2493, 8316), (2673, 7756), (2772, 7479), (3047, 6804), (3324, 6237), (3402, 6094), (3564, 5817), (3878, 5346), (4158, 4986)]