21214273808

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{769}}^1\times {\mathrm{18947}}^1$

素因数の和:19744

約数の個数: 80

約数和(自身を含む): 50656341120

約数和(自身を除く): 29442067312

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 769, 1456, 1538, 3076, 5383, 6152, 9997, 10766, 12304, 18947, 19994, 21532, 37894, 39988, 43064, 69979, 75788, 79976, 86128, 132629, 139958, 151576, 159952, 246311, 265258, 279916, 303152, 492622, 530516, 559832, 985244, 1061032, 1119664, 1724177, 1970488, 2122064, 3448354, 3940976, 6896708, 13793416, 14570243, 27586832, 29140486, 58280972, 101991701, 116561944, 189413159, 203983402, 233123888, 378826318, 407966804, 757652636, 815933608, 1325892113, 1515305272, 1631867216, 2651784226, 3030610544, 5303568452, 10607136904, 21214273808]

約数ペア:

[(1, 21214273808), (2, 10607136904), (4, 5303568452), (7, 3030610544), (8, 2651784226), (13, 1631867216), (14, 1515305272), (16, 1325892113), (26, 815933608), (28, 757652636), (52, 407966804), (56, 378826318), (91, 233123888), (104, 203983402), (112, 189413159), (182, 116561944), (208, 101991701), (364, 58280972), (728, 29140486), (769, 27586832), (1456, 14570243), (1538, 13793416), (3076, 6896708), (5383, 3940976), (6152, 3448354), (9997, 2122064), (10766, 1970488), (12304, 1724177), (18947, 1119664), (19994, 1061032), (21532, 985244), (37894, 559832), (39988, 530516), (43064, 492622), (69979, 303152), (75788, 279916), (79976, 265258), (86128, 246311), (132629, 159952), (139958, 151576)]