21526260

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{479}}^1$

素因数の和:605

約数の個数: 96

約数和(自身を含む): 69672960

約数和(自身を除く): 48146700

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 107, 140, 210, 214, 321, 420, 428, 479, 535, 642, 749, 958, 1070, 1284, 1437, 1498, 1605, 1916, 2140, 2247, 2395, 2874, 2996, 3210, 3353, 3745, 4494, 4790, 5748, 6420, 6706, 7185, 7490, 8988, 9580, 10059, 11235, 13412, 14370, 14980, 16765, 20118, 22470, 28740, 33530, 40236, 44940, 50295, 51253, 67060, 100590, 102506, 153759, 201180, 205012, 256265, 307518, 358771, 512530, 615036, 717542, 768795, 1025060, 1076313, 1435084, 1537590, 1793855, 2152626, 3075180, 3587710, 4305252, 5381565, 7175420, 10763130, 21526260]

約数ペア:

[(1, 21526260), (2, 10763130), (3, 7175420), (4, 5381565), (5, 4305252), (6, 3587710), (7, 3075180), (10, 2152626), (12, 1793855), (14, 1537590), (15, 1435084), (20, 1076313), (21, 1025060), (28, 768795), (30, 717542), (35, 615036), (42, 512530), (60, 358771), (70, 307518), (84, 256265), (105, 205012), (107, 201180), (140, 153759), (210, 102506), (214, 100590), (321, 67060), (420, 51253), (428, 50295), (479, 44940), (535, 40236), (642, 33530), (749, 28740), (958, 22470), (1070, 20118), (1284, 16765), (1437, 14980), (1498, 14370), (1605, 13412), (1916, 11235), (2140, 10059), (2247, 9580), (2395, 8988), (2874, 7490), (2996, 7185), (3210, 6706), (3353, 6420), (3745, 5748), (4494, 4790)]