21663290

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{6791}}^1$

素因数の和:6838

約数の個数: 32

約数和(自身を含む): 44012160

約数和(自身を除く): 22348870

約数列:

[1, 2, 5, 10, 11, 22, 29, 55, 58, 110, 145, 290, 319, 638, 1595, 3190, 6791, 13582, 33955, 67910, 74701, 149402, 196939, 373505, 393878, 747010, 984695, 1969390, 2166329, 4332658, 10831645, 21663290]

約数ペア:

[(1, 21663290), (2, 10831645), (5, 4332658), (10, 2166329), (11, 1969390), (22, 984695), (29, 747010), (55, 393878), (58, 373505), (110, 196939), (145, 149402), (290, 74701), (319, 67910), (638, 33955), (1595, 13582), (3190, 6791)]