21191256

素因数分解:

$2^3\times 3^2\times {\mathrm{89}}^1\times {\mathrm{3307}}^1$

素因数の和:3408

約数の個数: 48

約数和(自身を含む): 58055400

約数和(自身を除く): 36864144

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 89, 178, 267, 356, 534, 712, 801, 1068, 1602, 2136, 3204, 3307, 6408, 6614, 9921, 13228, 19842, 26456, 29763, 39684, 59526, 79368, 119052, 238104, 294323, 588646, 882969, 1177292, 1765938, 2354584, 2648907, 3531876, 5297814, 7063752, 10595628, 21191256]

約数ペア:

[(1, 21191256), (2, 10595628), (3, 7063752), (4, 5297814), (6, 3531876), (8, 2648907), (9, 2354584), (12, 1765938), (18, 1177292), (24, 882969), (36, 588646), (72, 294323), (89, 238104), (178, 119052), (267, 79368), (356, 59526), (534, 39684), (712, 29763), (801, 26456), (1068, 19842), (1602, 13228), (2136, 9921), (3204, 6614), (3307, 6408)]