18098217

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1$

素因数の和:222

約数の個数: 48

約数和(自身を含む): 29877120

約数和(自身を除く): 11778903

約数列:

[1, 3, 9, 17, 23, 37, 51, 69, 111, 139, 153, 207, 333, 391, 417, 629, 851, 1173, 1251, 1887, 2363, 2553, 3197, 3519, 5143, 5661, 7089, 7659, 9591, 14467, 15429, 21267, 28773, 43401, 46287, 54349, 87431, 118289, 130203, 163047, 262293, 354867, 489141, 786879, 1064601, 2010913, 6032739, 18098217]

約数ペア:

[(1, 18098217), (3, 6032739), (9, 2010913), (17, 1064601), (23, 786879), (37, 489141), (51, 354867), (69, 262293), (111, 163047), (139, 130203), (153, 118289), (207, 87431), (333, 54349), (391, 46287), (417, 43401), (629, 28773), (851, 21267), (1173, 15429), (1251, 14467), (1887, 9591), (2363, 7659), (2553, 7089), (3197, 5661), (3519, 5143)]