21668752

素因数分解:

$2^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{79}}^2$

素因数の和:204

約数の個数: 60

約数和(自身を含む): 50163456

約数和(自身を除く): 28494704

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 56, 62, 79, 112, 124, 158, 217, 248, 316, 434, 496, 553, 632, 868, 1106, 1264, 1736, 2212, 2449, 3472, 4424, 4898, 6241, 8848, 9796, 12482, 17143, 19592, 24964, 34286, 39184, 43687, 49928, 68572, 87374, 99856, 137144, 174748, 193471, 274288, 349496, 386942, 698992, 773884, 1354297, 1547768, 2708594, 3095536, 5417188, 10834376, 21668752]

約数ペア:

[(1, 21668752), (2, 10834376), (4, 5417188), (7, 3095536), (8, 2708594), (14, 1547768), (16, 1354297), (28, 773884), (31, 698992), (56, 386942), (62, 349496), (79, 274288), (112, 193471), (124, 174748), (158, 137144), (217, 99856), (248, 87374), (316, 68572), (434, 49928), (496, 43687), (553, 39184), (632, 34286), (868, 24964), (1106, 19592), (1264, 17143), (1736, 12482), (2212, 9796), (2449, 8848), (3472, 6241), (4424, 4898)]