21906198

素因数分解:

$2^1\times 3^2\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{281}}^1$

素因数の和:421

約数の個数: 48

約数和(自身を含む): 49095072

約数和(自身を除く): 27188874

約数列:

[1, 2, 3, 6, 9, 18, 61, 71, 122, 142, 183, 213, 281, 366, 426, 549, 562, 639, 843, 1098, 1278, 1686, 2529, 4331, 5058, 8662, 12993, 17141, 19951, 25986, 34282, 38979, 39902, 51423, 59853, 77958, 102846, 119706, 154269, 179559, 308538, 359118, 1217011, 2434022, 3651033, 7302066, 10953099, 21906198]

約数ペア:

[(1, 21906198), (2, 10953099), (3, 7302066), (6, 3651033), (9, 2434022), (18, 1217011), (61, 359118), (71, 308538), (122, 179559), (142, 154269), (183, 119706), (213, 102846), (281, 77958), (366, 59853), (426, 51423), (549, 39902), (562, 38979), (639, 34282), (843, 25986), (1098, 19951), (1278, 17141), (1686, 12993), (2529, 8662), (4331, 5058)]