20495916

素因数分解:

$2^2\times 3^4\times 7^2\times {\mathrm{1291}}^1$

素因数の和:1321

約数の個数: 90

約数和(自身を含む): 62376468

約数和(自身を除く): 41880552

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 49, 54, 63, 81, 84, 98, 108, 126, 147, 162, 189, 196, 252, 294, 324, 378, 441, 567, 588, 756, 882, 1134, 1291, 1323, 1764, 2268, 2582, 2646, 3873, 3969, 5164, 5292, 7746, 7938, 9037, 11619, 15492, 15876, 18074, 23238, 27111, 34857, 36148, 46476, 54222, 63259, 69714, 81333, 104571, 108444, 126518, 139428, 162666, 189777, 209142, 243999, 253036, 325332, 379554, 418284, 487998, 569331, 731997, 759108, 975996, 1138662, 1463994, 1707993, 2277324, 2927988, 3415986, 5123979, 6831972, 10247958, 20495916]

約数ペア:

[(1, 20495916), (2, 10247958), (3, 6831972), (4, 5123979), (6, 3415986), (7, 2927988), (9, 2277324), (12, 1707993), (14, 1463994), (18, 1138662), (21, 975996), (27, 759108), (28, 731997), (36, 569331), (42, 487998), (49, 418284), (54, 379554), (63, 325332), (81, 253036), (84, 243999), (98, 209142), (108, 189777), (126, 162666), (147, 139428), (162, 126518), (189, 108444), (196, 104571), (252, 81333), (294, 69714), (324, 63259), (378, 54222), (441, 46476), (567, 36148), (588, 34857), (756, 27111), (882, 23238), (1134, 18074), (1291, 15876), (1323, 15492), (1764, 11619), (2268, 9037), (2582, 7938), (2646, 7746), (3873, 5292), (3969, 5164)]