19311201

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1$

素因数の和:135

約数の個数: 96

約数和(自身を含む): 38787840

約数和(自身を除く): 19476639

約数列:

[1, 3, 7, 9, 13, 17, 19, 21, 39, 51, 57, 63, 73, 91, 117, 119, 133, 153, 171, 219, 221, 247, 273, 323, 357, 399, 511, 657, 663, 741, 819, 949, 969, 1071, 1197, 1241, 1387, 1533, 1547, 1729, 1989, 2223, 2261, 2847, 2907, 3723, 4161, 4199, 4599, 4641, 5187, 6643, 6783, 8541, 8687, 9709, 11169, 12483, 12597, 13923, 15561, 16133, 18031, 19929, 20349, 23579, 26061, 29127, 29393, 37791, 48399, 54093, 59787, 70737, 78183, 87381, 88179, 112931, 126217, 145197, 162279, 165053, 212211, 264537, 306527, 338793, 378651, 495159, 919581, 1016379, 1135953, 1485477, 2145689, 2758743, 6437067, 19311201]

約数ペア:

[(1, 19311201), (3, 6437067), (7, 2758743), (9, 2145689), (13, 1485477), (17, 1135953), (19, 1016379), (21, 919581), (39, 495159), (51, 378651), (57, 338793), (63, 306527), (73, 264537), (91, 212211), (117, 165053), (119, 162279), (133, 145197), (153, 126217), (171, 112931), (219, 88179), (221, 87381), (247, 78183), (273, 70737), (323, 59787), (357, 54093), (399, 48399), (511, 37791), (657, 29393), (663, 29127), (741, 26061), (819, 23579), (949, 20349), (969, 19929), (1071, 18031), (1197, 16133), (1241, 15561), (1387, 13923), (1533, 12597), (1547, 12483), (1729, 11169), (1989, 9709), (2223, 8687), (2261, 8541), (2847, 6783), (2907, 6643), (3723, 5187), (4161, 4641), (4199, 4599)]