18975292511

素因数分解:

$7^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{257}}^1\times {\mathrm{2803}}^1$

素因数の和:3191

約数の個数: 32

約数和(自身を含む): 22501628928

約数和(自身を除く): 3526336417

約数列:

[1, 7, 53, 71, 257, 371, 497, 1799, 2803, 3763, 13621, 18247, 19621, 26341, 95347, 127729, 148559, 199013, 720371, 967091, 1039913, 1393091, 5042597, 6769637, 10547689, 38179663, 51146341, 73833823, 267257641, 358024387, 2710756073, 18975292511]

約数ペア:

[(1, 18975292511), (7, 2710756073), (53, 358024387), (71, 267257641), (257, 73833823), (371, 51146341), (497, 38179663), (1799, 10547689), (2803, 6769637), (3763, 5042597), (13621, 1393091), (18247, 1039913), (19621, 967091), (26341, 720371), (95347, 199013), (127729, 148559)]