211512861

素因数分解:

$3^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{317}}^1$

素因数の和:443

約数の個数: 72

約数和(自身を含む): 381733560

約数和(自身を除く): 170220699

約数列:

[1, 3, 7, 9, 17, 21, 49, 51, 63, 89, 119, 147, 153, 267, 317, 357, 441, 623, 801, 833, 951, 1071, 1513, 1869, 2219, 2499, 2853, 4361, 4539, 5389, 5607, 6657, 7497, 10591, 13083, 13617, 15533, 16167, 19971, 28213, 31773, 37723, 39249, 46599, 48501, 74137, 84639, 95319, 113169, 139797, 197491, 222411, 253917, 264061, 339507, 479621, 592473, 667233, 792183, 1382437, 1438863, 1777419, 2376549, 3357347, 4147311, 4316589, 10072041, 12441933, 23501429, 30216123, 70504287, 211512861]

約数ペア:

[(1, 211512861), (3, 70504287), (7, 30216123), (9, 23501429), (17, 12441933), (21, 10072041), (49, 4316589), (51, 4147311), (63, 3357347), (89, 2376549), (119, 1777419), (147, 1438863), (153, 1382437), (267, 792183), (317, 667233), (357, 592473), (441, 479621), (623, 339507), (801, 264061), (833, 253917), (951, 222411), (1071, 197491), (1513, 139797), (1869, 113169), (2219, 95319), (2499, 84639), (2853, 74137), (4361, 48501), (4539, 46599), (5389, 39249), (5607, 37723), (6657, 31773), (7497, 28213), (10591, 19971), (13083, 16167), (13617, 15533)]