18873668

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{137}}^1$

素因数の和:284

約数の個数: 48

約数和(自身を含む): 37836288

約数和(自身を除く): 18962620

約数列:

[1, 2, 4, 11, 22, 31, 44, 62, 101, 124, 137, 202, 274, 341, 404, 548, 682, 1111, 1364, 1507, 2222, 3014, 3131, 4247, 4444, 6028, 6262, 8494, 12524, 13837, 16988, 27674, 34441, 46717, 55348, 68882, 93434, 137764, 152207, 186868, 304414, 428947, 608828, 857894, 1715788, 4718417, 9436834, 18873668]

約数ペア:

[(1, 18873668), (2, 9436834), (4, 4718417), (11, 1715788), (22, 857894), (31, 608828), (44, 428947), (62, 304414), (101, 186868), (124, 152207), (137, 137764), (202, 93434), (274, 68882), (341, 55348), (404, 46717), (548, 34441), (682, 27674), (1111, 16988), (1364, 13837), (1507, 12524), (2222, 8494), (3014, 6262), (3131, 6028), (4247, 4444)]