16821640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{38231}}^1$

素因数の和:38253

約数の個数: 32

約数和(自身を含む): 41290560

約数和(自身を除く): 24468920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 38231, 76462, 152924, 191155, 305848, 382310, 420541, 764620, 841082, 1529240, 1682164, 2102705, 3364328, 4205410, 8410820, 16821640]

約数ペア:

[(1, 16821640), (2, 8410820), (4, 4205410), (5, 3364328), (8, 2102705), (10, 1682164), (11, 1529240), (20, 841082), (22, 764620), (40, 420541), (44, 382310), (55, 305848), (88, 191155), (110, 152924), (220, 76462), (440, 38231)]