21250360

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{27961}}^1$

素因数の和:27991

約数の個数: 32

約数和(自身を含む): 50331600

約数和(自身を除く): 29081240

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 27961, 55922, 111844, 139805, 223688, 279610, 531259, 559220, 1062518, 1118440, 2125036, 2656295, 4250072, 5312590, 10625180, 21250360]

約数ペア:

[(1, 21250360), (2, 10625180), (4, 5312590), (5, 4250072), (8, 2656295), (10, 2125036), (19, 1118440), (20, 1062518), (38, 559220), (40, 531259), (76, 279610), (95, 223688), (152, 139805), (190, 111844), (380, 55922), (760, 27961)]