1721748

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{199}}^1$

素因数の和:316

約数の個数: 48

約数和(自身を含む): 4659200

約数和(自身を除く): 2937452

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 103, 199, 206, 309, 398, 412, 597, 618, 721, 796, 1194, 1236, 1393, 1442, 2163, 2388, 2786, 2884, 4179, 4326, 5572, 8358, 8652, 16716, 20497, 40994, 61491, 81988, 122982, 143479, 245964, 286958, 430437, 573916, 860874, 1721748]

約数ペア:

[(1, 1721748), (2, 860874), (3, 573916), (4, 430437), (6, 286958), (7, 245964), (12, 143479), (14, 122982), (21, 81988), (28, 61491), (42, 40994), (84, 20497), (103, 16716), (199, 8652), (206, 8358), (309, 5572), (398, 4326), (412, 4179), (597, 2884), (618, 2786), (721, 2388), (796, 2163), (1194, 1442), (1236, 1393)]