20518596

素因数分解:

$2^2\times 3^4\times 7^1\times {\mathrm{83}}^1\times {\mathrm{109}}^1$

素因数の和:215

約数の個数: 120

約数和(自身を含む): 62610240

約数和(自身を除く): 42091644

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 81, 83, 84, 108, 109, 126, 162, 166, 189, 218, 249, 252, 324, 327, 332, 378, 436, 498, 567, 581, 654, 747, 756, 763, 981, 996, 1134, 1162, 1308, 1494, 1526, 1743, 1962, 2241, 2268, 2289, 2324, 2943, 2988, 3052, 3486, 3924, 4482, 4578, 5229, 5886, 6723, 6867, 6972, 8829, 8964, 9047, 9156, 10458, 11772, 13446, 13734, 15687, 17658, 18094, 20601, 20916, 26892, 27141, 27468, 31374, 35316, 36188, 41202, 47061, 54282, 61803, 62748, 63329, 81423, 82404, 94122, 108564, 123606, 126658, 162846, 188244, 189987, 244269, 247212, 253316, 325692, 379974, 488538, 569961, 732807, 759948, 977076, 1139922, 1465614, 1709883, 2279844, 2931228, 3419766, 5129649, 6839532, 10259298, 20518596]

約数ペア:

[(1, 20518596), (2, 10259298), (3, 6839532), (4, 5129649), (6, 3419766), (7, 2931228), (9, 2279844), (12, 1709883), (14, 1465614), (18, 1139922), (21, 977076), (27, 759948), (28, 732807), (36, 569961), (42, 488538), (54, 379974), (63, 325692), (81, 253316), (83, 247212), (84, 244269), (108, 189987), (109, 188244), (126, 162846), (162, 126658), (166, 123606), (189, 108564), (218, 94122), (249, 82404), (252, 81423), (324, 63329), (327, 62748), (332, 61803), (378, 54282), (436, 47061), (498, 41202), (567, 36188), (581, 35316), (654, 31374), (747, 27468), (756, 27141), (763, 26892), (981, 20916), (996, 20601), (1134, 18094), (1162, 17658), (1308, 15687), (1494, 13734), (1526, 13446), (1743, 11772), (1962, 10458), (2241, 9156), (2268, 9047), (2289, 8964), (2324, 8829), (2943, 6972), (2988, 6867), (3052, 6723), (3486, 5886), (3924, 5229), (4482, 4578)]