19988772

素因数分解:

$2^2\times 3^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{809}}^1$

素因数の和:916

約数の個数: 48

約数和(自身を含む): 48988800

約数和(自身を除く): 29000028

約数列:

[1, 2, 3, 4, 6, 12, 29, 58, 71, 87, 116, 142, 174, 213, 284, 348, 426, 809, 852, 1618, 2059, 2427, 3236, 4118, 4854, 6177, 8236, 9708, 12354, 23461, 24708, 46922, 57439, 70383, 93844, 114878, 140766, 172317, 229756, 281532, 344634, 689268, 1665731, 3331462, 4997193, 6662924, 9994386, 19988772]

約数ペア:

[(1, 19988772), (2, 9994386), (3, 6662924), (4, 4997193), (6, 3331462), (12, 1665731), (29, 689268), (58, 344634), (71, 281532), (87, 229756), (116, 172317), (142, 140766), (174, 114878), (213, 93844), (284, 70383), (348, 57439), (426, 46922), (809, 24708), (852, 23461), (1618, 12354), (2059, 9708), (2427, 8236), (3236, 6177), (4118, 4854)]