21502078

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{107}}^1\times {\mathrm{131}}^1$

素因数の和:312

約数の個数: 32

約数和(自身を含む): 35925120

約数和(自身を除く): 14423042

約数列:

[1, 2, 13, 26, 59, 107, 118, 131, 214, 262, 767, 1391, 1534, 1703, 2782, 3406, 6313, 7729, 12626, 14017, 15458, 28034, 82069, 100477, 164138, 182221, 200954, 364442, 827003, 1654006, 10751039, 21502078]

約数ペア:

[(1, 21502078), (2, 10751039), (13, 1654006), (26, 827003), (59, 364442), (107, 200954), (118, 182221), (131, 164138), (214, 100477), (262, 82069), (767, 28034), (1391, 15458), (1534, 14017), (1703, 12626), (2782, 7729), (3406, 6313)]