21079464

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{271}}^1\times {\mathrm{463}}^1$

素因数の和:750

約数の個数: 64

約数和(自身を含む): 60579840

約数和(自身を除く): 39500376

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 271, 463, 542, 813, 926, 1084, 1389, 1626, 1852, 1897, 2168, 2778, 3241, 3252, 3704, 3794, 5556, 5691, 6482, 6504, 7588, 9723, 11112, 11382, 12964, 15176, 19446, 22764, 25928, 38892, 45528, 77784, 125473, 250946, 376419, 501892, 752838, 878311, 1003784, 1505676, 1756622, 2634933, 3011352, 3513244, 5269866, 7026488, 10539732, 21079464]

約数ペア:

[(1, 21079464), (2, 10539732), (3, 7026488), (4, 5269866), (6, 3513244), (7, 3011352), (8, 2634933), (12, 1756622), (14, 1505676), (21, 1003784), (24, 878311), (28, 752838), (42, 501892), (56, 376419), (84, 250946), (168, 125473), (271, 77784), (463, 45528), (542, 38892), (813, 25928), (926, 22764), (1084, 19446), (1389, 15176), (1626, 12964), (1852, 11382), (1897, 11112), (2168, 9723), (2778, 7588), (3241, 6504), (3252, 6482), (3704, 5691), (3794, 5556)]