19886930

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{2237}}^1$

素因数の和:2378

約数の個数: 32

約数和(自身を含む): 41250816

約数和(自身を除く): 21363886

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 127, 254, 635, 889, 1270, 1778, 2237, 4445, 4474, 8890, 11185, 15659, 22370, 31318, 78295, 156590, 284099, 568198, 1420495, 1988693, 2840990, 3977386, 9943465, 19886930]

約数ペア:

[(1, 19886930), (2, 9943465), (5, 3977386), (7, 2840990), (10, 1988693), (14, 1420495), (35, 568198), (70, 284099), (127, 156590), (254, 78295), (635, 31318), (889, 22370), (1270, 15659), (1778, 11185), (2237, 8890), (4445, 4474)]