21039522056

素因数分解:

$2^3\times 7^1\times {\mathrm{79}}^1\times {\mathrm{127}}^1\times {\mathrm{37447}}^1$

素因数の和:37666

約数の個数: 64

約数和(自身を含む): 46016102400

約数和(自身を除く): 24976580344

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 79, 127, 158, 254, 316, 508, 553, 632, 889, 1016, 1106, 1778, 2212, 3556, 4424, 7112, 10033, 20066, 37447, 40132, 70231, 74894, 80264, 140462, 149788, 262129, 280924, 299576, 524258, 561848, 1048516, 2097032, 2958313, 4755769, 5916626, 9511538, 11833252, 19023076, 20708191, 23666504, 33290383, 38046152, 41416382, 66580766, 82832764, 133161532, 165665528, 266323064, 375705751, 751411502, 1502823004, 2629940257, 3005646008, 5259880514, 10519761028, 21039522056]

約数ペア:

[(1, 21039522056), (2, 10519761028), (4, 5259880514), (7, 3005646008), (8, 2629940257), (14, 1502823004), (28, 751411502), (56, 375705751), (79, 266323064), (127, 165665528), (158, 133161532), (254, 82832764), (316, 66580766), (508, 41416382), (553, 38046152), (632, 33290383), (889, 23666504), (1016, 20708191), (1106, 19023076), (1778, 11833252), (2212, 9511538), (3556, 5916626), (4424, 4755769), (7112, 2958313), (10033, 2097032), (20066, 1048516), (37447, 561848), (40132, 524258), (70231, 299576), (74894, 280924), (80264, 262129), (140462, 149788)]