199917639

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{129901}}^1$

素因数の和:129932

約数の個数: 20

約数和(自身を含む): 314362840

約数和(自身を除く): 114445201

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 129901, 389703, 1169109, 2468119, 3507327, 7404357, 10521981, 22213071, 66639213, 199917639]

約数ペア:

[(1, 199917639), (3, 66639213), (9, 22213071), (19, 10521981), (27, 7404357), (57, 3507327), (81, 2468119), (171, 1169109), (513, 389703), (1539, 129901)]