21759680

素因数分解:

$2^6\times 5^1\times {\mathrm{53}}^1\times {\mathrm{1283}}^1$

素因数の和:1353

約数の個数: 56

約数和(自身を含む): 52834032

約数和(自身を除く): 31074352

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 53, 64, 80, 106, 160, 212, 265, 320, 424, 530, 848, 1060, 1283, 1696, 2120, 2566, 3392, 4240, 5132, 6415, 8480, 10264, 12830, 16960, 20528, 25660, 41056, 51320, 67999, 82112, 102640, 135998, 205280, 271996, 339995, 410560, 543992, 679990, 1087984, 1359980, 2175968, 2719960, 4351936, 5439920, 10879840, 21759680]

約数ペア:

[(1, 21759680), (2, 10879840), (4, 5439920), (5, 4351936), (8, 2719960), (10, 2175968), (16, 1359980), (20, 1087984), (32, 679990), (40, 543992), (53, 410560), (64, 339995), (80, 271996), (106, 205280), (160, 135998), (212, 102640), (265, 82112), (320, 67999), (424, 51320), (530, 41056), (848, 25660), (1060, 20528), (1283, 16960), (1696, 12830), (2120, 10264), (2566, 8480), (3392, 6415), (4240, 5132)]