209219178

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{1987}}^1$

素因数の和:2131

約数の個数: 64

約数和(自身を含む): 503838720

約数和(自身を除く): 294619542

約数列:

[1, 2, 3, 6, 7, 14, 21, 23, 42, 46, 69, 109, 138, 161, 218, 322, 327, 483, 654, 763, 966, 1526, 1987, 2289, 2507, 3974, 4578, 5014, 5961, 7521, 11922, 13909, 15042, 17549, 27818, 35098, 41727, 45701, 52647, 83454, 91402, 105294, 137103, 216583, 274206, 319907, 433166, 639814, 649749, 959721, 1299498, 1516081, 1919442, 3032162, 4548243, 4981409, 9096486, 9962818, 14944227, 29888454, 34869863, 69739726, 104609589, 209219178]

約数ペア:

[(1, 209219178), (2, 104609589), (3, 69739726), (6, 34869863), (7, 29888454), (14, 14944227), (21, 9962818), (23, 9096486), (42, 4981409), (46, 4548243), (69, 3032162), (109, 1919442), (138, 1516081), (161, 1299498), (218, 959721), (322, 649749), (327, 639814), (483, 433166), (654, 319907), (763, 274206), (966, 216583), (1526, 137103), (1987, 105294), (2289, 91402), (2507, 83454), (3974, 52647), (4578, 45701), (5014, 41727), (5961, 35098), (7521, 27818), (11922, 17549), (13909, 15042)]