21974240

素因数分解:

$2^5\times 5^1\times {\mathrm{137339}}^1$

素因数の和:137354

約数の個数: 24

約数和(自身を含む): 51914520

約数和(自身を除く): 29940280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 137339, 274678, 549356, 686695, 1098712, 1373390, 2197424, 2746780, 4394848, 5493560, 10987120, 21974240]

約数ペア:

[(1, 21974240), (2, 10987120), (4, 5493560), (5, 4394848), (8, 2746780), (10, 2197424), (16, 1373390), (20, 1098712), (32, 686695), (40, 549356), (80, 274678), (160, 137339)]