21415248

素因数分解:

$2^4\times 3^2\times {\mathrm{127}}^1\times {\mathrm{1171}}^1$

素因数の和:1312

約数の個数: 60

約数和(自身を含む): 60456448

約数和(自身を除く): 39041200

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 127, 144, 254, 381, 508, 762, 1016, 1143, 1171, 1524, 2032, 2286, 2342, 3048, 3513, 4572, 4684, 6096, 7026, 9144, 9368, 10539, 14052, 18288, 18736, 21078, 28104, 42156, 56208, 84312, 148717, 168624, 297434, 446151, 594868, 892302, 1189736, 1338453, 1784604, 2379472, 2676906, 3569208, 5353812, 7138416, 10707624, 21415248]

約数ペア:

[(1, 21415248), (2, 10707624), (3, 7138416), (4, 5353812), (6, 3569208), (8, 2676906), (9, 2379472), (12, 1784604), (16, 1338453), (18, 1189736), (24, 892302), (36, 594868), (48, 446151), (72, 297434), (127, 168624), (144, 148717), (254, 84312), (381, 56208), (508, 42156), (762, 28104), (1016, 21078), (1143, 18736), (1171, 18288), (1524, 14052), (2032, 10539), (2286, 9368), (2342, 9144), (3048, 7026), (3513, 6096), (4572, 4684)]