28191228

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^2\times {\mathrm{13901}}^1$

素因数の和:13934

約数の個数: 36

約数和(自身を含む): 71233848

約数和(自身を除く): 43042620

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 169, 338, 507, 676, 1014, 2028, 13901, 27802, 41703, 55604, 83406, 166812, 180713, 361426, 542139, 722852, 1084278, 2168556, 2349269, 4698538, 7047807, 9397076, 14095614, 28191228]

約数ペア:

[(1, 28191228), (2, 14095614), (3, 9397076), (4, 7047807), (6, 4698538), (12, 2349269), (13, 2168556), (26, 1084278), (39, 722852), (52, 542139), (78, 361426), (156, 180713), (169, 166812), (338, 83406), (507, 55604), (676, 41703), (1014, 27802), (2028, 13901)]