20710494

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{211}}^1$

素因数の和:286

約数の個数: 96

約数和(自身を含む): 55560960

約数和(自身を除く): 34850466

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 19, 21, 38, 41, 42, 57, 63, 82, 114, 123, 126, 133, 171, 211, 246, 266, 287, 342, 369, 399, 422, 574, 633, 738, 779, 798, 861, 1197, 1266, 1477, 1558, 1722, 1899, 2337, 2394, 2583, 2954, 3798, 4009, 4431, 4674, 5166, 5453, 7011, 8018, 8651, 8862, 10906, 12027, 13293, 14022, 16359, 17302, 24054, 25953, 26586, 28063, 32718, 36081, 49077, 51906, 56126, 60557, 72162, 77859, 84189, 98154, 121114, 155718, 164369, 168378, 181671, 252567, 328738, 363342, 493107, 505134, 545013, 986214, 1090026, 1150583, 1479321, 2301166, 2958642, 3451749, 6903498, 10355247, 20710494]

約数ペア:

[(1, 20710494), (2, 10355247), (3, 6903498), (6, 3451749), (7, 2958642), (9, 2301166), (14, 1479321), (18, 1150583), (19, 1090026), (21, 986214), (38, 545013), (41, 505134), (42, 493107), (57, 363342), (63, 328738), (82, 252567), (114, 181671), (123, 168378), (126, 164369), (133, 155718), (171, 121114), (211, 98154), (246, 84189), (266, 77859), (287, 72162), (342, 60557), (369, 56126), (399, 51906), (422, 49077), (574, 36081), (633, 32718), (738, 28063), (779, 26586), (798, 25953), (861, 24054), (1197, 17302), (1266, 16359), (1477, 14022), (1558, 13293), (1722, 12027), (1899, 10906), (2337, 8862), (2394, 8651), (2583, 8018), (2954, 7011), (3798, 5453), (4009, 5166), (4431, 4674)]