201919878

素因数分解:

$2^1\times 3^6\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{197}}^1$

素因数の和:273

約数の個数: 112

約数和(自身を含む): 493423920

約数和(自身を除く): 291504042

約数列:

[1, 2, 3, 6, 9, 18, 19, 27, 37, 38, 54, 57, 74, 81, 111, 114, 162, 171, 197, 222, 243, 333, 342, 394, 486, 513, 591, 666, 703, 729, 999, 1026, 1182, 1406, 1458, 1539, 1773, 1998, 2109, 2997, 3078, 3546, 3743, 4218, 4617, 5319, 5994, 6327, 7289, 7486, 8991, 9234, 10638, 11229, 12654, 13851, 14578, 15957, 17982, 18981, 21867, 22458, 26973, 27702, 31914, 33687, 37962, 43734, 47871, 53946, 56943, 65601, 67374, 95742, 101061, 113886, 131202, 138491, 143613, 170829, 196803, 202122, 276982, 287226, 303183, 341658, 393606, 415473, 512487, 590409, 606366, 830946, 909549, 1024974, 1180818, 1246419, 1771227, 1819098, 2492838, 2728647, 3542454, 3739257, 5313681, 5457294, 7478514, 10627362, 11217771, 22435542, 33653313, 67306626, 100959939, 201919878]

約数ペア:

[(1, 201919878), (2, 100959939), (3, 67306626), (6, 33653313), (9, 22435542), (18, 11217771), (19, 10627362), (27, 7478514), (37, 5457294), (38, 5313681), (54, 3739257), (57, 3542454), (74, 2728647), (81, 2492838), (111, 1819098), (114, 1771227), (162, 1246419), (171, 1180818), (197, 1024974), (222, 909549), (243, 830946), (333, 606366), (342, 590409), (394, 512487), (486, 415473), (513, 393606), (591, 341658), (666, 303183), (703, 287226), (729, 276982), (999, 202122), (1026, 196803), (1182, 170829), (1406, 143613), (1458, 138491), (1539, 131202), (1773, 113886), (1998, 101061), (2109, 95742), (2997, 67374), (3078, 65601), (3546, 56943), (3743, 53946), (4218, 47871), (4617, 43734), (5319, 37962), (5994, 33687), (6327, 31914), (7289, 27702), (7486, 26973), (8991, 22458), (9234, 21867), (10638, 18981), (11229, 17982), (12654, 15957), (13851, 14578)]