20236755

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{2503}}^1$

素因数の和:2536

約数の個数: 48

約数和(自身を含む): 41105664

約数和(自身を除く): 20868909

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 49, 55, 77, 105, 147, 165, 231, 245, 385, 539, 735, 1155, 1617, 2503, 2695, 7509, 8085, 12515, 17521, 27533, 37545, 52563, 82599, 87605, 122647, 137665, 192731, 262815, 367941, 412995, 578193, 613235, 963655, 1349117, 1839705, 2890965, 4047351, 6745585, 20236755]

約数ペア:

[(1, 20236755), (3, 6745585), (5, 4047351), (7, 2890965), (11, 1839705), (15, 1349117), (21, 963655), (33, 613235), (35, 578193), (49, 412995), (55, 367941), (77, 262815), (105, 192731), (147, 137665), (165, 122647), (231, 87605), (245, 82599), (385, 52563), (539, 37545), (735, 27533), (1155, 17521), (1617, 12515), (2503, 8085), (2695, 7509)]