21575790

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{239731}}^1$

素因数の和:239744

約数の個数: 24

約数和(自身を含む): 56097288

約数和(自身を除く): 34521498

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 239731, 479462, 719193, 1198655, 1438386, 2157579, 2397310, 3595965, 4315158, 7191930, 10787895, 21575790]

約数ペア:

[(1, 21575790), (2, 10787895), (3, 7191930), (5, 4315158), (6, 3595965), (9, 2397310), (10, 2157579), (15, 1438386), (18, 1198655), (30, 719193), (45, 479462), (90, 239731)]