21820360

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{28711}}^1$

素因数の和:28741

約数の個数: 32

約数和(自身を含む): 51681600

約数和(自身を除く): 29861240

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 28711, 57422, 114844, 143555, 229688, 287110, 545509, 574220, 1091018, 1148440, 2182036, 2727545, 4364072, 5455090, 10910180, 21820360]

約数ペア:

[(1, 21820360), (2, 10910180), (4, 5455090), (5, 4364072), (8, 2727545), (10, 2182036), (19, 1148440), (20, 1091018), (38, 574220), (40, 545509), (76, 287110), (95, 229688), (152, 143555), (190, 114844), (380, 57422), (760, 28711)]