21297176

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{167}}^1\times {\mathrm{839}}^1$

素因数の和:1031

約数の個数: 32

約数和(自身を含む): 42336000

約数和(自身を除く): 21038824

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 167, 334, 668, 839, 1336, 1678, 3173, 3356, 6346, 6712, 12692, 15941, 25384, 31882, 63764, 127528, 140113, 280226, 560452, 1120904, 2662147, 5324294, 10648588, 21297176]

約数ペア:

[(1, 21297176), (2, 10648588), (4, 5324294), (8, 2662147), (19, 1120904), (38, 560452), (76, 280226), (152, 140113), (167, 127528), (334, 63764), (668, 31882), (839, 25384), (1336, 15941), (1678, 12692), (3173, 6712), (3356, 6346)]