20501988

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{6917}}^1$

素因数の和:6956

約数の個数: 48

約数和(自身を含む): 54237120

約数和(自身を除く): 33735132

約数列:

[1, 2, 3, 4, 6, 12, 13, 19, 26, 38, 39, 52, 57, 76, 78, 114, 156, 228, 247, 494, 741, 988, 1482, 2964, 6917, 13834, 20751, 27668, 41502, 83004, 89921, 131423, 179842, 262846, 269763, 359684, 394269, 525692, 539526, 788538, 1079052, 1577076, 1708499, 3416998, 5125497, 6833996, 10250994, 20501988]

約数ペア:

[(1, 20501988), (2, 10250994), (3, 6833996), (4, 5125497), (6, 3416998), (12, 1708499), (13, 1577076), (19, 1079052), (26, 788538), (38, 539526), (39, 525692), (52, 394269), (57, 359684), (76, 269763), (78, 262846), (114, 179842), (156, 131423), (228, 89921), (247, 83004), (494, 41502), (741, 27668), (988, 20751), (1482, 13834), (2964, 6917)]