687654

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{151}}^1$

素因数の和:193

約数の個数: 48

約数和(自身を含む): 1707264

約数和(自身を除く): 1019610

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 23, 33, 46, 66, 69, 99, 138, 151, 198, 207, 253, 302, 414, 453, 506, 759, 906, 1359, 1518, 1661, 2277, 2718, 3322, 3473, 4554, 4983, 6946, 9966, 10419, 14949, 20838, 29898, 31257, 38203, 62514, 76406, 114609, 229218, 343827, 687654]

約数ペア:

[(1, 687654), (2, 343827), (3, 229218), (6, 114609), (9, 76406), (11, 62514), (18, 38203), (22, 31257), (23, 29898), (33, 20838), (46, 14949), (66, 10419), (69, 9966), (99, 6946), (138, 4983), (151, 4554), (198, 3473), (207, 3322), (253, 2718), (302, 2277), (414, 1661), (453, 1518), (506, 1359), (759, 906)]