21856840

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{28759}}^1$

素因数の和:28789

約数の個数: 32

約数和(自身を含む): 51768000

約数和(自身を除く): 29911160

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 28759, 57518, 115036, 143795, 230072, 287590, 546421, 575180, 1092842, 1150360, 2185684, 2732105, 4371368, 5464210, 10928420, 21856840]

約数ペア:

[(1, 21856840), (2, 10928420), (4, 5464210), (5, 4371368), (8, 2732105), (10, 2185684), (19, 1150360), (20, 1092842), (38, 575180), (40, 546421), (76, 287590), (95, 230072), (152, 143795), (190, 115036), (380, 57518), (760, 28759)]