16381857

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{127}}^1$

素因数の和:253

約数の個数: 32

約数和(自身を含む): 24248320

約数和(自身を除く): 7866463

約数列:

[1, 3, 19, 31, 57, 73, 93, 127, 219, 381, 589, 1387, 1767, 2263, 2413, 3937, 4161, 6789, 7239, 9271, 11811, 27813, 42997, 74803, 128991, 176149, 224409, 287401, 528447, 862203, 5460619, 16381857]

約数ペア:

[(1, 16381857), (3, 5460619), (19, 862203), (31, 528447), (57, 287401), (73, 224409), (93, 176149), (127, 128991), (219, 74803), (381, 42997), (589, 27813), (1387, 11811), (1767, 9271), (2263, 7239), (2413, 6789), (3937, 4161)]