21022872

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1567}}^1$

素因数の和:1632

約数の個数: 64

約数和(自身を含む): 57953280

約数和(自身を除く): 36930408

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 43, 52, 78, 86, 104, 129, 156, 172, 258, 312, 344, 516, 559, 1032, 1118, 1567, 1677, 2236, 3134, 3354, 4472, 4701, 6268, 6708, 9402, 12536, 13416, 18804, 20371, 37608, 40742, 61113, 67381, 81484, 122226, 134762, 162968, 202143, 244452, 269524, 404286, 488904, 539048, 808572, 875953, 1617144, 1751906, 2627859, 3503812, 5255718, 7007624, 10511436, 21022872]

約数ペア:

[(1, 21022872), (2, 10511436), (3, 7007624), (4, 5255718), (6, 3503812), (8, 2627859), (12, 1751906), (13, 1617144), (24, 875953), (26, 808572), (39, 539048), (43, 488904), (52, 404286), (78, 269524), (86, 244452), (104, 202143), (129, 162968), (156, 134762), (172, 122226), (258, 81484), (312, 67381), (344, 61113), (516, 40742), (559, 37608), (1032, 20371), (1118, 18804), (1567, 13416), (1677, 12536), (2236, 9402), (3134, 6708), (3354, 6268), (4472, 4701)]