20969874

素因数分解:

$2^1\times 3^3\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{431}}^1$

素因数の和:512

約数の個数: 64

約数和(自身を含む): 50388480

約数和(自身を除く): 29418606

約数列:

[1, 2, 3, 6, 9, 17, 18, 27, 34, 51, 53, 54, 102, 106, 153, 159, 306, 318, 431, 459, 477, 862, 901, 918, 954, 1293, 1431, 1802, 2586, 2703, 2862, 3879, 5406, 7327, 7758, 8109, 11637, 14654, 16218, 21981, 22843, 23274, 24327, 43962, 45686, 48654, 65943, 68529, 131886, 137058, 197829, 205587, 388331, 395658, 411174, 616761, 776662, 1164993, 1233522, 2329986, 3494979, 6989958, 10484937, 20969874]

約数ペア:

[(1, 20969874), (2, 10484937), (3, 6989958), (6, 3494979), (9, 2329986), (17, 1233522), (18, 1164993), (27, 776662), (34, 616761), (51, 411174), (53, 395658), (54, 388331), (102, 205587), (106, 197829), (153, 137058), (159, 131886), (306, 68529), (318, 65943), (431, 48654), (459, 45686), (477, 43962), (862, 24327), (901, 23274), (918, 22843), (954, 21981), (1293, 16218), (1431, 14654), (1802, 11637), (2586, 8109), (2703, 7758), (2862, 7327), (3879, 5406)]