21618930

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{5501}}^1$

素因数の和:5642

約数の個数: 32

約数和(自身を含む): 52291008

約数和(自身を除く): 30672078

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 131, 262, 393, 655, 786, 1310, 1965, 3930, 5501, 11002, 16503, 27505, 33006, 55010, 82515, 165030, 720631, 1441262, 2161893, 3603155, 4323786, 7206310, 10809465, 21618930]

約数ペア:

[(1, 21618930), (2, 10809465), (3, 7206310), (5, 4323786), (6, 3603155), (10, 2161893), (15, 1441262), (30, 720631), (131, 165030), (262, 82515), (393, 55010), (655, 33006), (786, 27505), (1310, 16503), (1965, 11002), (3930, 5501)]