21521430

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{193}}^1$

素因数の和:275

約数の個数: 128

約数和(自身を含む): 67046400

約数和(自身を除く): 45524970

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 59, 63, 70, 90, 105, 118, 126, 135, 177, 189, 193, 210, 270, 295, 315, 354, 378, 386, 413, 531, 579, 590, 630, 826, 885, 945, 965, 1062, 1158, 1239, 1351, 1593, 1737, 1770, 1890, 1930, 2065, 2478, 2655, 2702, 2895, 3186, 3474, 3717, 4053, 4130, 5211, 5310, 5790, 6195, 6755, 7434, 7965, 8106, 8685, 10422, 11151, 11387, 12159, 12390, 13510, 15930, 17370, 18585, 20265, 22302, 22774, 24318, 26055, 34161, 36477, 37170, 40530, 52110, 55755, 56935, 60795, 68322, 72954, 79709, 102483, 111510, 113870, 121590, 159418, 170805, 182385, 204966, 239127, 307449, 341610, 364770, 398545, 478254, 512415, 614898, 717381, 797090, 1024830, 1195635, 1434762, 1537245, 2152143, 2391270, 3074490, 3586905, 4304286, 7173810, 10760715, 21521430]

約数ペア:

[(1, 21521430), (2, 10760715), (3, 7173810), (5, 4304286), (6, 3586905), (7, 3074490), (9, 2391270), (10, 2152143), (14, 1537245), (15, 1434762), (18, 1195635), (21, 1024830), (27, 797090), (30, 717381), (35, 614898), (42, 512415), (45, 478254), (54, 398545), (59, 364770), (63, 341610), (70, 307449), (90, 239127), (105, 204966), (118, 182385), (126, 170805), (135, 159418), (177, 121590), (189, 113870), (193, 111510), (210, 102483), (270, 79709), (295, 72954), (315, 68322), (354, 60795), (378, 56935), (386, 55755), (413, 52110), (531, 40530), (579, 37170), (590, 36477), (630, 34161), (826, 26055), (885, 24318), (945, 22774), (965, 22302), (1062, 20265), (1158, 18585), (1239, 17370), (1351, 15930), (1593, 13510), (1737, 12390), (1770, 12159), (1890, 11387), (1930, 11151), (2065, 10422), (2478, 8685), (2655, 8106), (2702, 7965), (2895, 7434), (3186, 6755), (3474, 6195), (3717, 5790), (4053, 5310), (4130, 5211)]