21709996

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{70487}}^1$

素因数の和:70509

約数の個数: 24

約数和(自身を含む): 47367936

約数和(自身を除く): 25657940

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 70487, 140974, 281948, 493409, 775357, 986818, 1550714, 1973636, 3101428, 5427499, 10854998, 21709996]

約数ペア:

[(1, 21709996), (2, 10854998), (4, 5427499), (7, 3101428), (11, 1973636), (14, 1550714), (22, 986818), (28, 775357), (44, 493409), (77, 281948), (154, 140974), (308, 70487)]