21334456

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1097}}^1$

素因数の和:1144

約数の個数: 64

約数和(自身を含む): 49805280

約数和(自身を除く): 28470824

約数列:

[1, 2, 4, 8, 11, 13, 17, 22, 26, 34, 44, 52, 68, 88, 104, 136, 143, 187, 221, 286, 374, 442, 572, 748, 884, 1097, 1144, 1496, 1768, 2194, 2431, 4388, 4862, 8776, 9724, 12067, 14261, 18649, 19448, 24134, 28522, 37298, 48268, 57044, 74596, 96536, 114088, 149192, 156871, 205139, 242437, 313742, 410278, 484874, 627484, 820556, 969748, 1254968, 1641112, 1939496, 2666807, 5333614, 10667228, 21334456]

約数ペア:

[(1, 21334456), (2, 10667228), (4, 5333614), (8, 2666807), (11, 1939496), (13, 1641112), (17, 1254968), (22, 969748), (26, 820556), (34, 627484), (44, 484874), (52, 410278), (68, 313742), (88, 242437), (104, 205139), (136, 156871), (143, 149192), (187, 114088), (221, 96536), (286, 74596), (374, 57044), (442, 48268), (572, 37298), (748, 28522), (884, 24134), (1097, 19448), (1144, 18649), (1496, 14261), (1768, 12067), (2194, 9724), (2431, 8776), (4388, 4862)]