21004854

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{5081}}^1$

素因数の和:5152

約数の個数: 32

約数和(自身を含む): 46103904

約数和(自身を除く): 25099050

約数列:

[1, 2, 3, 6, 13, 26, 39, 53, 78, 106, 159, 318, 689, 1378, 2067, 4134, 5081, 10162, 15243, 30486, 66053, 132106, 198159, 269293, 396318, 538586, 807879, 1615758, 3500809, 7001618, 10502427, 21004854]

約数ペア:

[(1, 21004854), (2, 10502427), (3, 7001618), (6, 3500809), (13, 1615758), (26, 807879), (39, 538586), (53, 396318), (78, 269293), (106, 198159), (159, 132106), (318, 66053), (689, 30486), (1378, 15243), (2067, 10162), (4134, 5081)]