21122946

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{4751}}^1$

素因数の和:4791

約数の個数: 48

約数和(自身を含む): 51891840

約数和(自身を除く): 30768894

約数列:

[1, 2, 3, 6, 9, 13, 18, 19, 26, 38, 39, 57, 78, 114, 117, 171, 234, 247, 342, 494, 741, 1482, 2223, 4446, 4751, 9502, 14253, 28506, 42759, 61763, 85518, 90269, 123526, 180538, 185289, 270807, 370578, 541614, 555867, 812421, 1111734, 1173497, 1624842, 2346994, 3520491, 7040982, 10561473, 21122946]

約数ペア:

[(1, 21122946), (2, 10561473), (3, 7040982), (6, 3520491), (9, 2346994), (13, 1624842), (18, 1173497), (19, 1111734), (26, 812421), (38, 555867), (39, 541614), (57, 370578), (78, 270807), (114, 185289), (117, 180538), (171, 123526), (234, 90269), (247, 85518), (342, 61763), (494, 42759), (741, 28506), (1482, 14253), (2223, 9502), (4446, 4751)]