1990457973

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{1373677}}^1$

素因数の和:1373713

約数の個数: 24

約数和(自身を含む): 3428700288

約数和(自身を除く): 1438242315

約数列:

[1, 3, 7, 9, 21, 23, 63, 69, 161, 207, 483, 1449, 1373677, 4121031, 9615739, 12363093, 28847217, 31594571, 86541651, 94783713, 221161997, 284351139, 663485991, 1990457973]

約数ペア:

[(1, 1990457973), (3, 663485991), (7, 284351139), (9, 221161997), (21, 94783713), (23, 86541651), (63, 31594571), (69, 28847217), (161, 12363093), (207, 9615739), (483, 4121031), (1449, 1373677)]