16153221

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{257}}^1$

素因数の和:381

約数の個数: 32

約数和(自身を含む): 25659648

約数和(自身を除く): 9506427

約数列:

[1, 3, 7, 21, 41, 73, 123, 219, 257, 287, 511, 771, 861, 1533, 1799, 2993, 5397, 8979, 10537, 18761, 20951, 31611, 56283, 62853, 73759, 131327, 221277, 393981, 769201, 2307603, 5384407, 16153221]

約数ペア:

[(1, 16153221), (3, 5384407), (7, 2307603), (21, 769201), (41, 393981), (73, 221277), (123, 131327), (219, 73759), (257, 62853), (287, 56283), (511, 31611), (771, 20951), (861, 18761), (1533, 10537), (1799, 8979), (2993, 5397)]