21988072

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{1511}}^1$

素因数の和:1641

約数の個数: 32

約数和(自身を含む): 44089920

約数和(自身を除く): 22101848

約数列:

[1, 2, 4, 8, 17, 34, 68, 107, 136, 214, 428, 856, 1511, 1819, 3022, 3638, 6044, 7276, 12088, 14552, 25687, 51374, 102748, 161677, 205496, 323354, 646708, 1293416, 2748509, 5497018, 10994036, 21988072]

約数ペア:

[(1, 21988072), (2, 10994036), (4, 5497018), (8, 2748509), (17, 1293416), (34, 646708), (68, 323354), (107, 205496), (136, 161677), (214, 102748), (428, 51374), (856, 25687), (1511, 14552), (1819, 12088), (3022, 7276), (3638, 6044)]