18713916

素因数分解:

$2^2\times 3^5\times {\mathrm{13}}^1\times {\mathrm{1481}}^1$

素因数の和:1513

約数の個数: 72

約数和(自身を含む): 52865904

約数和(自身を除く): 34151988

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 39, 52, 54, 78, 81, 108, 117, 156, 162, 234, 243, 324, 351, 468, 486, 702, 972, 1053, 1404, 1481, 2106, 2962, 3159, 4212, 4443, 5924, 6318, 8886, 12636, 13329, 17772, 19253, 26658, 38506, 39987, 53316, 57759, 77012, 79974, 115518, 119961, 159948, 173277, 231036, 239922, 346554, 359883, 479844, 519831, 693108, 719766, 1039662, 1439532, 1559493, 2079324, 3118986, 4678479, 6237972, 9356958, 18713916]

約数ペア:

[(1, 18713916), (2, 9356958), (3, 6237972), (4, 4678479), (6, 3118986), (9, 2079324), (12, 1559493), (13, 1439532), (18, 1039662), (26, 719766), (27, 693108), (36, 519831), (39, 479844), (52, 359883), (54, 346554), (78, 239922), (81, 231036), (108, 173277), (117, 159948), (156, 119961), (162, 115518), (234, 79974), (243, 77012), (324, 57759), (351, 53316), (468, 39987), (486, 38506), (702, 26658), (972, 19253), (1053, 17772), (1404, 13329), (1481, 12636), (2106, 8886), (2962, 6318), (3159, 5924), (4212, 4443)]