21974320

素因数分解:

$2^4\times 5^1\times {\mathrm{274679}}^1$

素因数の和:274692

約数の個数: 20

約数和(自身を含む): 51090480

約数和(自身を除く): 29116160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 274679, 549358, 1098716, 1373395, 2197432, 2746790, 4394864, 5493580, 10987160, 21974320]

約数ペア:

[(1, 21974320), (2, 10987160), (4, 5493580), (5, 4394864), (8, 2746790), (10, 2197432), (16, 1373395), (20, 1098716), (40, 549358), (80, 274679)]