21129240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{16007}}^1$

素因数の和:16032

約数の個数: 64

約数和(自身を含む): 69154560

約数和(自身を除く): 48025320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 110, 120, 132, 165, 220, 264, 330, 440, 660, 1320, 16007, 32014, 48021, 64028, 80035, 96042, 128056, 160070, 176077, 192084, 240105, 320140, 352154, 384168, 480210, 528231, 640280, 704308, 880385, 960420, 1056462, 1408616, 1760770, 1920840, 2112924, 2641155, 3521540, 4225848, 5282310, 7043080, 10564620, 21129240]

約数ペア:

[(1, 21129240), (2, 10564620), (3, 7043080), (4, 5282310), (5, 4225848), (6, 3521540), (8, 2641155), (10, 2112924), (11, 1920840), (12, 1760770), (15, 1408616), (20, 1056462), (22, 960420), (24, 880385), (30, 704308), (33, 640280), (40, 528231), (44, 480210), (55, 384168), (60, 352154), (66, 320140), (88, 240105), (110, 192084), (120, 176077), (132, 160070), (165, 128056), (220, 96042), (264, 80035), (330, 64028), (440, 48021), (660, 32014), (1320, 16007)]