21151298

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{181}}^1\times {\mathrm{491}}^1$

素因数の和:698

約数の個数: 32

約数和(自身を含む): 38683008

約数和(自身を除く): 17531710

約数列:

[1, 2, 7, 14, 17, 34, 119, 181, 238, 362, 491, 982, 1267, 2534, 3077, 3437, 6154, 6874, 8347, 16694, 21539, 43078, 58429, 88871, 116858, 177742, 622097, 1244194, 1510807, 3021614, 10575649, 21151298]

約数ペア:

[(1, 21151298), (2, 10575649), (7, 3021614), (14, 1510807), (17, 1244194), (34, 622097), (119, 177742), (181, 116858), (238, 88871), (362, 58429), (491, 43078), (982, 21539), (1267, 16694), (2534, 8347), (3077, 6874), (3437, 6154)]