19186587

素因数分解:

$3^2\times 7^2\times {\mathrm{139}}^1\times {\mathrm{313}}^1$

素因数の和:472

約数の個数: 36

約数和(自身を含む): 32574360

約数和(自身を除く): 13387773

約数列:

[1, 3, 7, 9, 21, 49, 63, 139, 147, 313, 417, 441, 939, 973, 1251, 2191, 2817, 2919, 6573, 6811, 8757, 15337, 19719, 20433, 43507, 46011, 61299, 130521, 138033, 304549, 391563, 913647, 2131843, 2740941, 6395529, 19186587]

約数ペア:

[(1, 19186587), (3, 6395529), (7, 2740941), (9, 2131843), (21, 913647), (49, 391563), (63, 304549), (139, 138033), (147, 130521), (313, 61299), (417, 46011), (441, 43507), (939, 20433), (973, 19719), (1251, 15337), (2191, 8757), (2817, 6811), (2919, 6573)]