31491218

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{3517}}^1$

素因数の和:3578

約数の個数: 24

約数和(自身を含む): 53339916

約数和(自身を除く): 21848698

約数列:

[1, 2, 11, 22, 37, 74, 121, 242, 407, 814, 3517, 4477, 7034, 8954, 38687, 77374, 130129, 260258, 425557, 851114, 1431419, 2862838, 15745609, 31491218]

約数ペア:

[(1, 31491218), (2, 15745609), (11, 2862838), (22, 1431419), (37, 851114), (74, 425557), (121, 260258), (242, 130129), (407, 77374), (814, 38687), (3517, 8954), (4477, 7034)]