18001203

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{641}}^1$

素因数の和:715

約数の個数: 32

約数和(自身を含む): 28104192

約数和(自身を除く): 10102989

約数列:

[1, 3, 11, 23, 33, 37, 69, 111, 253, 407, 641, 759, 851, 1221, 1923, 2553, 7051, 9361, 14743, 21153, 23717, 28083, 44229, 71151, 162173, 260887, 486519, 545491, 782661, 1636473, 6000401, 18001203]

約数ペア:

[(1, 18001203), (3, 6000401), (11, 1636473), (23, 782661), (33, 545491), (37, 486519), (69, 260887), (111, 162173), (253, 71151), (407, 44229), (641, 28083), (759, 23717), (851, 21153), (1221, 14743), (1923, 9361), (2553, 7051)]