1981738

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{431}}^1$

素因数の和:474

約数の個数: 24

約数和(自身を含む): 3447360

約数和(自身を除く): 1465622

約数列:

[1, 2, 11, 19, 22, 38, 121, 209, 242, 418, 431, 862, 2299, 4598, 4741, 8189, 9482, 16378, 52151, 90079, 104302, 180158, 990869, 1981738]

約数ペア:

[(1, 1981738), (2, 990869), (11, 180158), (19, 104302), (22, 90079), (38, 52151), (121, 16378), (209, 9482), (242, 8189), (418, 4741), (431, 4598), (862, 2299)]