20820274

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{97}}^1\times {\mathrm{107}}^1$

素因数の和:282

約数の個数: 32

約数和(自身を含む): 34292160

約数和(自身を除く): 13471886

約数列:

[1, 2, 17, 34, 59, 97, 107, 118, 194, 214, 1003, 1649, 1819, 2006, 3298, 3638, 5723, 6313, 10379, 11446, 12626, 20758, 97291, 107321, 176443, 194582, 214642, 352886, 612361, 1224722, 10410137, 20820274]

約数ペア:

[(1, 20820274), (2, 10410137), (17, 1224722), (34, 612361), (59, 352886), (97, 214642), (107, 194582), (118, 176443), (194, 107321), (214, 97291), (1003, 20758), (1649, 12626), (1819, 11446), (2006, 10379), (3298, 6313), (3638, 5723)]