21383012

素因数分解:

$2^2\times 7^2\times {\mathrm{109097}}^1$

素因数の和:109115

約数の個数: 18

約数和(自身を含む): 43530102

約数和(自身を除く): 22147090

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 109097, 218194, 436388, 763679, 1527358, 3054716, 5345753, 10691506, 21383012]

約数ペア:

[(1, 21383012), (2, 10691506), (4, 5345753), (7, 3054716), (14, 1527358), (28, 763679), (49, 436388), (98, 218194), (196, 109097)]