21374640

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{4241}}^1$

素因数の和:4267

約数の個数: 120

約数和(自身を含む): 82057248

約数和(自身を除く): 60682608

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 105, 112, 120, 126, 140, 144, 168, 180, 210, 240, 252, 280, 315, 336, 360, 420, 504, 560, 630, 720, 840, 1008, 1260, 1680, 2520, 4241, 5040, 8482, 12723, 16964, 21205, 25446, 29687, 33928, 38169, 42410, 50892, 59374, 63615, 67856, 76338, 84820, 89061, 101784, 118748, 127230, 148435, 152676, 169640, 178122, 190845, 203568, 237496, 254460, 267183, 296870, 305352, 339280, 356244, 381690, 445305, 474992, 508920, 534366, 593740, 610704, 712488, 763380, 890610, 1017840, 1068732, 1187480, 1335915, 1424976, 1526760, 1781220, 2137464, 2374960, 2671830, 3053520, 3562440, 4274928, 5343660, 7124880, 10687320, 21374640]

約数ペア:

[(1, 21374640), (2, 10687320), (3, 7124880), (4, 5343660), (5, 4274928), (6, 3562440), (7, 3053520), (8, 2671830), (9, 2374960), (10, 2137464), (12, 1781220), (14, 1526760), (15, 1424976), (16, 1335915), (18, 1187480), (20, 1068732), (21, 1017840), (24, 890610), (28, 763380), (30, 712488), (35, 610704), (36, 593740), (40, 534366), (42, 508920), (45, 474992), (48, 445305), (56, 381690), (60, 356244), (63, 339280), (70, 305352), (72, 296870), (80, 267183), (84, 254460), (90, 237496), (105, 203568), (112, 190845), (120, 178122), (126, 169640), (140, 152676), (144, 148435), (168, 127230), (180, 118748), (210, 101784), (240, 89061), (252, 84820), (280, 76338), (315, 67856), (336, 63615), (360, 59374), (420, 50892), (504, 42410), (560, 38169), (630, 33928), (720, 29687), (840, 25446), (1008, 21205), (1260, 16964), (1680, 12723), (2520, 8482), (4241, 5040)]