21328086

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{6359}}^1$

素因数の和:6420

約数の個数: 32

約数和(自身を含む): 47013120

約数和(自身を除く): 25685034

約数列:

[1, 2, 3, 6, 13, 26, 39, 43, 78, 86, 129, 258, 559, 1118, 1677, 3354, 6359, 12718, 19077, 38154, 82667, 165334, 248001, 273437, 496002, 546874, 820311, 1640622, 3554681, 7109362, 10664043, 21328086]

約数ペア:

[(1, 21328086), (2, 10664043), (3, 7109362), (6, 3554681), (13, 1640622), (26, 820311), (39, 546874), (43, 496002), (78, 273437), (86, 248001), (129, 165334), (258, 82667), (559, 38154), (1118, 19077), (1677, 12718), (3354, 6359)]