21728476

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1$

素因数の和:167

約数の個数: 96

約数和(自身を含む): 51609600

約数和(自身を除く): 29881124

約数列:

[1, 2, 4, 7, 11, 14, 19, 22, 28, 38, 44, 47, 76, 77, 79, 94, 133, 154, 158, 188, 209, 266, 308, 316, 329, 418, 517, 532, 553, 658, 836, 869, 893, 1034, 1106, 1316, 1463, 1501, 1738, 1786, 2068, 2212, 2926, 3002, 3476, 3572, 3619, 3713, 5852, 6004, 6083, 6251, 7238, 7426, 9823, 10507, 12166, 12502, 14476, 14852, 16511, 19646, 21014, 24332, 25004, 25991, 33022, 39292, 40843, 42028, 51982, 66044, 68761, 70547, 81686, 103964, 115577, 137522, 141094, 163372, 231154, 275044, 282188, 285901, 462308, 493829, 571802, 776017, 987658, 1143604, 1552034, 1975316, 3104068, 5432119, 10864238, 21728476]

約数ペア:

[(1, 21728476), (2, 10864238), (4, 5432119), (7, 3104068), (11, 1975316), (14, 1552034), (19, 1143604), (22, 987658), (28, 776017), (38, 571802), (44, 493829), (47, 462308), (76, 285901), (77, 282188), (79, 275044), (94, 231154), (133, 163372), (154, 141094), (158, 137522), (188, 115577), (209, 103964), (266, 81686), (308, 70547), (316, 68761), (329, 66044), (418, 51982), (517, 42028), (532, 40843), (553, 39292), (658, 33022), (836, 25991), (869, 25004), (893, 24332), (1034, 21014), (1106, 19646), (1316, 16511), (1463, 14852), (1501, 14476), (1738, 12502), (1786, 12166), (2068, 10507), (2212, 9823), (2926, 7426), (3002, 7238), (3476, 6251), (3572, 6083), (3619, 6004), (3713, 5852)]