21897468

素因数分解:

$2^2\times 3^2\times {\mathrm{487}}^1\times {\mathrm{1249}}^1$

素因数の和:1746

約数の個数: 36

約数和(自身を含む): 55510000

約数和(自身を除く): 33612532

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 487, 974, 1249, 1461, 1948, 2498, 2922, 3747, 4383, 4996, 5844, 7494, 8766, 11241, 14988, 17532, 22482, 44964, 608263, 1216526, 1824789, 2433052, 3649578, 5474367, 7299156, 10948734, 21897468]

約数ペア:

[(1, 21897468), (2, 10948734), (3, 7299156), (4, 5474367), (6, 3649578), (9, 2433052), (12, 1824789), (18, 1216526), (36, 608263), (487, 44964), (974, 22482), (1249, 17532), (1461, 14988), (1948, 11241), (2498, 8766), (2922, 7494), (3747, 5844), (4383, 4996)]