21064648

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{47}}^1\times {\mathrm{463}}^1$

素因数の和:538

約数の個数: 48

約数和(自身を含む): 44432640

約数和(自身を除く): 23367992

約数列:

[1, 2, 4, 8, 11, 22, 44, 47, 88, 94, 121, 188, 242, 376, 463, 484, 517, 926, 968, 1034, 1852, 2068, 3704, 4136, 5093, 5687, 10186, 11374, 20372, 21761, 22748, 40744, 43522, 45496, 56023, 87044, 112046, 174088, 224092, 239371, 448184, 478742, 957484, 1914968, 2633081, 5266162, 10532324, 21064648]

約数ペア:

[(1, 21064648), (2, 10532324), (4, 5266162), (8, 2633081), (11, 1914968), (22, 957484), (44, 478742), (47, 448184), (88, 239371), (94, 224092), (121, 174088), (188, 112046), (242, 87044), (376, 56023), (463, 45496), (484, 43522), (517, 40744), (926, 22748), (968, 21761), (1034, 20372), (1852, 11374), (2068, 10186), (3704, 5687), (4136, 5093)]