20749638

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1$

素因数の和:182

約数の個数: 96

約数和(自身を含む): 53434080

約数和(自身を除く): 32684442

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 49, 61, 78, 89, 91, 98, 122, 147, 178, 182, 183, 267, 273, 294, 366, 427, 534, 546, 623, 637, 793, 854, 1157, 1246, 1274, 1281, 1586, 1869, 1911, 2314, 2379, 2562, 2989, 3471, 3738, 3822, 4361, 4758, 5429, 5551, 5978, 6942, 8099, 8722, 8967, 10858, 11102, 13083, 16198, 16287, 16653, 17934, 24297, 26166, 32574, 33306, 38003, 38857, 48594, 56693, 70577, 76006, 77714, 113386, 114009, 116571, 141154, 170079, 211731, 228018, 233142, 266021, 340158, 423462, 494039, 532042, 798063, 988078, 1482117, 1596126, 2964234, 3458273, 6916546, 10374819, 20749638]

約数ペア:

[(1, 20749638), (2, 10374819), (3, 6916546), (6, 3458273), (7, 2964234), (13, 1596126), (14, 1482117), (21, 988078), (26, 798063), (39, 532042), (42, 494039), (49, 423462), (61, 340158), (78, 266021), (89, 233142), (91, 228018), (98, 211731), (122, 170079), (147, 141154), (178, 116571), (182, 114009), (183, 113386), (267, 77714), (273, 76006), (294, 70577), (366, 56693), (427, 48594), (534, 38857), (546, 38003), (623, 33306), (637, 32574), (793, 26166), (854, 24297), (1157, 17934), (1246, 16653), (1274, 16287), (1281, 16198), (1586, 13083), (1869, 11102), (1911, 10858), (2314, 8967), (2379, 8722), (2562, 8099), (2989, 6942), (3471, 5978), (3738, 5551), (3822, 5429), (4361, 4758)]