18639228

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{2819}}^1$

素因数の和:2874

約数の個数: 48

約数和(自身を含む): 47376000

約数和(自身を除く): 28736772

約数列:

[1, 2, 3, 4, 6, 12, 19, 29, 38, 57, 58, 76, 87, 114, 116, 174, 228, 348, 551, 1102, 1653, 2204, 2819, 3306, 5638, 6612, 8457, 11276, 16914, 33828, 53561, 81751, 107122, 160683, 163502, 214244, 245253, 321366, 327004, 490506, 642732, 981012, 1553269, 3106538, 4659807, 6213076, 9319614, 18639228]

約数ペア:

[(1, 18639228), (2, 9319614), (3, 6213076), (4, 4659807), (6, 3106538), (12, 1553269), (19, 981012), (29, 642732), (38, 490506), (57, 327004), (58, 321366), (76, 245253), (87, 214244), (114, 163502), (116, 160683), (174, 107122), (228, 81751), (348, 53561), (551, 33828), (1102, 16914), (1653, 11276), (2204, 8457), (2819, 6612), (3306, 5638)]