21554764

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{1489}}^1$

素因数の和:1558

約数の個数: 48

約数和(自身を含む): 48061440

約数和(自身を除く): 26506676

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 47, 77, 94, 154, 188, 308, 329, 517, 658, 1034, 1316, 1489, 2068, 2978, 3619, 5956, 7238, 10423, 14476, 16379, 20846, 32758, 41692, 65516, 69983, 114653, 139966, 229306, 279932, 458612, 489881, 769813, 979762, 1539626, 1959524, 3079252, 5388691, 10777382, 21554764]

約数ペア:

[(1, 21554764), (2, 10777382), (4, 5388691), (7, 3079252), (11, 1959524), (14, 1539626), (22, 979762), (28, 769813), (44, 489881), (47, 458612), (77, 279932), (94, 229306), (154, 139966), (188, 114653), (308, 69983), (329, 65516), (517, 41692), (658, 32758), (1034, 20846), (1316, 16379), (1489, 14476), (2068, 10423), (2978, 7238), (3619, 5956)]