21406974

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{2543}}^1$

素因数の和:2632

約数の個数: 32

約数和(自身を含む): 45425664

約数和(自身を除く): 24018690

約数列:

[1, 2, 3, 6, 23, 46, 61, 69, 122, 138, 183, 366, 1403, 2543, 2806, 4209, 5086, 7629, 8418, 15258, 58489, 116978, 155123, 175467, 310246, 350934, 465369, 930738, 3567829, 7135658, 10703487, 21406974]

約数ペア:

[(1, 21406974), (2, 10703487), (3, 7135658), (6, 3567829), (23, 930738), (46, 465369), (61, 350934), (69, 310246), (122, 175467), (138, 155123), (183, 116978), (366, 58489), (1403, 15258), (2543, 8418), (2806, 7629), (4209, 5086)]