21276816

素因数分解:

$2^4\times 3^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{683}}^1$

素因数の和:764

約数の個数: 80

約数和(自身を含む): 61067520

約数和(自身を除く): 39790704

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 33, 44, 48, 59, 66, 88, 118, 132, 176, 177, 236, 264, 354, 472, 528, 649, 683, 708, 944, 1298, 1366, 1416, 1947, 2049, 2596, 2732, 2832, 3894, 4098, 5192, 5464, 7513, 7788, 8196, 10384, 10928, 15026, 15576, 16392, 22539, 30052, 31152, 32784, 40297, 45078, 60104, 80594, 90156, 120208, 120891, 161188, 180312, 241782, 322376, 360624, 443267, 483564, 644752, 886534, 967128, 1329801, 1773068, 1934256, 2659602, 3546136, 5319204, 7092272, 10638408, 21276816]

約数ペア:

[(1, 21276816), (2, 10638408), (3, 7092272), (4, 5319204), (6, 3546136), (8, 2659602), (11, 1934256), (12, 1773068), (16, 1329801), (22, 967128), (24, 886534), (33, 644752), (44, 483564), (48, 443267), (59, 360624), (66, 322376), (88, 241782), (118, 180312), (132, 161188), (176, 120891), (177, 120208), (236, 90156), (264, 80594), (354, 60104), (472, 45078), (528, 40297), (649, 32784), (683, 31152), (708, 30052), (944, 22539), (1298, 16392), (1366, 15576), (1416, 15026), (1947, 10928), (2049, 10384), (2596, 8196), (2732, 7788), (2832, 7513), (3894, 5464), (4098, 5192)]