19072988

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{157}}^1\times {\mathrm{251}}^1$

素因数の和:434

約数の個数: 36

約数和(自身を含む): 37068696

約数和(自身を除く): 17995708

約数列:

[1, 2, 4, 11, 22, 44, 121, 157, 242, 251, 314, 484, 502, 628, 1004, 1727, 2761, 3454, 5522, 6908, 11044, 18997, 30371, 37994, 39407, 60742, 75988, 78814, 121484, 157628, 433477, 866954, 1733908, 4768247, 9536494, 19072988]

約数ペア:

[(1, 19072988), (2, 9536494), (4, 4768247), (11, 1733908), (22, 866954), (44, 433477), (121, 157628), (157, 121484), (242, 78814), (251, 75988), (314, 60742), (484, 39407), (502, 37994), (628, 30371), (1004, 18997), (1727, 11044), (2761, 6908), (3454, 5522)]