21649036

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{2459}}^1$

素因数の和:2565

約数の個数: 24

約数和(自身を含む): 39674880

約数和(自身を除く): 18025844

約数列:

[1, 2, 4, 31, 62, 71, 124, 142, 284, 2201, 2459, 4402, 4918, 8804, 9836, 76229, 152458, 174589, 304916, 349178, 698356, 5412259, 10824518, 21649036]

約数ペア:

[(1, 21649036), (2, 10824518), (4, 5412259), (31, 698356), (62, 349178), (71, 304916), (124, 174589), (142, 152458), (284, 76229), (2201, 9836), (2459, 8804), (4402, 4918)]