21764380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{98929}}^1$

素因数の和:98949

約数の個数: 24

約数和(自身を含む): 49860720

約数和(自身を除く): 28096340

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 98929, 197858, 395716, 494645, 989290, 1088219, 1978580, 2176438, 4352876, 5441095, 10882190, 21764380]

約数ペア:

[(1, 21764380), (2, 10882190), (4, 5441095), (5, 4352876), (10, 2176438), (11, 1978580), (20, 1088219), (22, 989290), (44, 494645), (55, 395716), (110, 197858), (220, 98929)]