19778206

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{239}}^1\times {\mathrm{257}}^1$

素因数の和:528

約数の個数: 32

約数和(自身を含む): 35665920

約数和(自身を除く): 15887714

約数列:

[1, 2, 7, 14, 23, 46, 161, 239, 257, 322, 478, 514, 1673, 1799, 3346, 3598, 5497, 5911, 10994, 11822, 38479, 41377, 61423, 76958, 82754, 122846, 429961, 859922, 1412729, 2825458, 9889103, 19778206]

約数ペア:

[(1, 19778206), (2, 9889103), (7, 2825458), (14, 1412729), (23, 859922), (46, 429961), (161, 122846), (239, 82754), (257, 76958), (322, 61423), (478, 41377), (514, 38479), (1673, 11822), (1799, 10994), (3346, 5911), (3598, 5497)]