208530441

素因数分解:

$3^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{23813}}^1$

素因数の和:23965

約数の個数: 24

約数和(自身を含む): 346731840

約数和(自身を除く): 138201399

約数列:

[1, 3, 7, 9, 21, 63, 139, 417, 973, 1251, 2919, 8757, 23813, 71439, 166691, 214317, 500073, 1500219, 3310007, 9930021, 23170049, 29790063, 69510147, 208530441]

約数ペア:

[(1, 208530441), (3, 69510147), (7, 29790063), (9, 23170049), (21, 9930021), (63, 3310007), (139, 1500219), (417, 500073), (973, 214317), (1251, 166691), (2919, 71439), (8757, 23813)]