21084516

素因数分解:

$2^2\times 3^3\times {\mathrm{197}}^1\times {\mathrm{991}}^1$

素因数の和:1201

約数の個数: 48

約数和(自身を含む): 54996480

約数和(自身を除く): 33911964

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 197, 394, 591, 788, 991, 1182, 1773, 1982, 2364, 2973, 3546, 3964, 5319, 5946, 7092, 8919, 10638, 11892, 17838, 21276, 26757, 35676, 53514, 107028, 195227, 390454, 585681, 780908, 1171362, 1757043, 2342724, 3514086, 5271129, 7028172, 10542258, 21084516]

約数ペア:

[(1, 21084516), (2, 10542258), (3, 7028172), (4, 5271129), (6, 3514086), (9, 2342724), (12, 1757043), (18, 1171362), (27, 780908), (36, 585681), (54, 390454), (108, 195227), (197, 107028), (394, 53514), (591, 35676), (788, 26757), (991, 21276), (1182, 17838), (1773, 11892), (1982, 10638), (2364, 8919), (2973, 7092), (3546, 5946), (3964, 5319)]