21657948

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{7307}}^1$

素因数の和:7346

約数の個数: 48

約数和(自身を含む): 57294720

約数和(自身を除く): 35636772

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, 7307, 14614, 21921, 29228, 43842, 87684, 94991, 138833, 189982, 277666, 284973, 379964, 416499, 555332, 569946, 832998, 1139892, 1665996, 1804829, 3609658, 5414487, 7219316, 10828974, 21657948]

約数ペア:

[(1, 21657948), (2, 10828974), (3, 7219316), (4, 5414487), (6, 3609658), (12, 1804829), (13, 1665996), (19, 1139892), (26, 832998), (38, 569946), (39, 555332), (52, 416499), (57, 379964), (76, 284973), (78, 277666), (114, 189982), (156, 138833), (228, 94991), (247, 87684), (494, 43842), (741, 29228), (988, 21921), (1482, 14614), (2964, 7307)]