21974560

素因数分解:

$2^5\times 5^1\times {\mathrm{137341}}^1$

素因数の和:137356

約数の個数: 24

約数和(自身を含む): 51915276

約数和(自身を除く): 29940716

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 137341, 274682, 549364, 686705, 1098728, 1373410, 2197456, 2746820, 4394912, 5493640, 10987280, 21974560]

約数ペア:

[(1, 21974560), (2, 10987280), (4, 5493640), (5, 4394912), (8, 2746820), (10, 2197456), (16, 1373410), (20, 1098728), (32, 686705), (40, 549364), (80, 274682), (160, 137341)]