21189515198

素因数分解:

$2^1\times {\mathrm{19}}^2\times {\mathrm{109}}^1\times {\mathrm{269251}}^1$

素因数の和:269400

約数の個数: 24

約数和(自身を含む): 33853053960

約数和(自身を除く): 12663538762

約数列:

[1, 2, 19, 38, 109, 218, 361, 722, 2071, 4142, 39349, 78698, 269251, 538502, 5115769, 10231538, 29348359, 58696718, 97199611, 194399222, 557618821, 1115237642, 10594757599, 21189515198]

約数ペア:

[(1, 21189515198), (2, 10594757599), (19, 1115237642), (38, 557618821), (109, 194399222), (218, 97199611), (361, 58696718), (722, 29348359), (2071, 10231538), (4142, 5115769), (39349, 538502), (78698, 269251)]