19855095

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{233}}^1$

素因数の和:296

約数の個数: 64

約数和(自身を含む): 37739520

約数和(自身を除く): 17884425

約数列:

[1, 3, 5, 13, 15, 19, 23, 39, 57, 65, 69, 95, 115, 195, 233, 247, 285, 299, 345, 437, 699, 741, 897, 1165, 1235, 1311, 1495, 2185, 3029, 3495, 3705, 4427, 4485, 5359, 5681, 6555, 9087, 13281, 15145, 16077, 17043, 22135, 26795, 28405, 45435, 57551, 66405, 69667, 80385, 85215, 101821, 172653, 209001, 287755, 305463, 348335, 509105, 863265, 1045005, 1323673, 1527315, 3971019, 6618365, 19855095]

約数ペア:

[(1, 19855095), (3, 6618365), (5, 3971019), (13, 1527315), (15, 1323673), (19, 1045005), (23, 863265), (39, 509105), (57, 348335), (65, 305463), (69, 287755), (95, 209001), (115, 172653), (195, 101821), (233, 85215), (247, 80385), (285, 69667), (299, 66405), (345, 57551), (437, 45435), (699, 28405), (741, 26795), (897, 22135), (1165, 17043), (1235, 16077), (1311, 15145), (1495, 13281), (2185, 9087), (3029, 6555), (3495, 5681), (3705, 5359), (4427, 4485)]