19787976

素因数分解:

$2^3\times 3^8\times {\mathrm{13}}^1\times {\mathrm{29}}^1$

素因数の和:72

約数の個数: 144

約数和(自身を含む): 61998300

約数和(自身を除く): 42210324

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 27, 29, 36, 39, 52, 54, 58, 72, 78, 81, 87, 104, 108, 116, 117, 156, 162, 174, 216, 232, 234, 243, 261, 312, 324, 348, 351, 377, 468, 486, 522, 648, 696, 702, 729, 754, 783, 936, 972, 1044, 1053, 1131, 1404, 1458, 1508, 1566, 1944, 2088, 2106, 2187, 2262, 2349, 2808, 2916, 3016, 3132, 3159, 3393, 4212, 4374, 4524, 4698, 5832, 6264, 6318, 6561, 6786, 7047, 8424, 8748, 9048, 9396, 9477, 10179, 12636, 13122, 13572, 14094, 17496, 18792, 18954, 20358, 21141, 25272, 26244, 27144, 28188, 28431, 30537, 37908, 40716, 42282, 52488, 56376, 56862, 61074, 63423, 75816, 81432, 84564, 85293, 91611, 113724, 122148, 126846, 169128, 170586, 183222, 190269, 227448, 244296, 253692, 274833, 341172, 366444, 380538, 507384, 549666, 682344, 732888, 761076, 824499, 1099332, 1522152, 1648998, 2198664, 2473497, 3297996, 4946994, 6595992, 9893988, 19787976]

約数ペア:

[(1, 19787976), (2, 9893988), (3, 6595992), (4, 4946994), (6, 3297996), (8, 2473497), (9, 2198664), (12, 1648998), (13, 1522152), (18, 1099332), (24, 824499), (26, 761076), (27, 732888), (29, 682344), (36, 549666), (39, 507384), (52, 380538), (54, 366444), (58, 341172), (72, 274833), (78, 253692), (81, 244296), (87, 227448), (104, 190269), (108, 183222), (116, 170586), (117, 169128), (156, 126846), (162, 122148), (174, 113724), (216, 91611), (232, 85293), (234, 84564), (243, 81432), (261, 75816), (312, 63423), (324, 61074), (348, 56862), (351, 56376), (377, 52488), (468, 42282), (486, 40716), (522, 37908), (648, 30537), (696, 28431), (702, 28188), (729, 27144), (754, 26244), (783, 25272), (936, 21141), (972, 20358), (1044, 18954), (1053, 18792), (1131, 17496), (1404, 14094), (1458, 13572), (1508, 13122), (1566, 12636), (1944, 10179), (2088, 9477), (2106, 9396), (2187, 9048), (2262, 8748), (2349, 8424), (2808, 7047), (2916, 6786), (3016, 6561), (3132, 6318), (3159, 6264), (3393, 5832), (4212, 4698), (4374, 4524)]