21444045

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{1559}}^1$

素因数の和:1705

約数の個数: 32

約数和(自身を含む): 39536640

約数和(自身を除く): 18092595

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 131, 393, 655, 917, 1559, 1965, 2751, 4585, 4677, 7795, 10913, 13755, 23385, 32739, 54565, 163695, 204229, 612687, 1021145, 1429603, 3063435, 4288809, 7148015, 21444045]

約数ペア:

[(1, 21444045), (3, 7148015), (5, 4288809), (7, 3063435), (15, 1429603), (21, 1021145), (35, 612687), (105, 204229), (131, 163695), (393, 54565), (655, 32739), (917, 23385), (1559, 13755), (1965, 10913), (2751, 7795), (4585, 4677)]