21105990

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{234511}}^1$

素因数の和:234524

約数の個数: 24

約数和(自身を含む): 54875808

約数和(自身を除く): 33769818

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 234511, 469022, 703533, 1172555, 1407066, 2110599, 2345110, 3517665, 4221198, 7035330, 10552995, 21105990]

約数ペア:

[(1, 21105990), (2, 10552995), (3, 7035330), (5, 4221198), (6, 3517665), (9, 2345110), (10, 2110599), (15, 1407066), (18, 1172555), (30, 703533), (45, 469022), (90, 234511)]