21108734

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{223}}^1$

素因数の和:344

約数の個数: 32

約数和(自身を含む): 34836480

約数和(自身を除く): 13727746

約数列:

[1, 2, 19, 38, 47, 53, 94, 106, 223, 446, 893, 1007, 1786, 2014, 2491, 4237, 4982, 8474, 10481, 11819, 20962, 23638, 47329, 94658, 199139, 224561, 398278, 449122, 555493, 1110986, 10554367, 21108734]

約数ペア:

[(1, 21108734), (2, 10554367), (19, 1110986), (38, 555493), (47, 449122), (53, 398278), (94, 224561), (106, 199139), (223, 94658), (446, 47329), (893, 23638), (1007, 20962), (1786, 11819), (2014, 10481), (2491, 8474), (4237, 4982)]