21095478

素因数分解:

$2^1\times 3^4\times {\mathrm{107}}^1\times {\mathrm{1217}}^1$

素因数の和:1338

約数の個数: 40

約数和(自身を含む): 47750472

約数和(自身を除く): 26654994

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 107, 162, 214, 321, 642, 963, 1217, 1926, 2434, 2889, 3651, 5778, 7302, 8667, 10953, 17334, 21906, 32859, 65718, 98577, 130219, 197154, 260438, 390657, 781314, 1171971, 2343942, 3515913, 7031826, 10547739, 21095478]

約数ペア:

[(1, 21095478), (2, 10547739), (3, 7031826), (6, 3515913), (9, 2343942), (18, 1171971), (27, 781314), (54, 390657), (81, 260438), (107, 197154), (162, 130219), (214, 98577), (321, 65718), (642, 32859), (963, 21906), (1217, 17334), (1926, 10953), (2434, 8667), (2889, 7302), (3651, 5778)]