18891741

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{313}}^1$

素因数の和:417

約数の個数: 32

約数和(自身を含む): 28938240

約数和(自身を除く): 10046499

約数列:

[1, 3, 11, 31, 33, 59, 93, 177, 313, 341, 649, 939, 1023, 1829, 1947, 3443, 5487, 9703, 10329, 18467, 20119, 29109, 55401, 60357, 106733, 203137, 320199, 572477, 609411, 1717431, 6297247, 18891741]

約数ペア:

[(1, 18891741), (3, 6297247), (11, 1717431), (31, 609411), (33, 572477), (59, 320199), (93, 203137), (177, 106733), (313, 60357), (341, 55401), (649, 29109), (939, 20119), (1023, 18467), (1829, 10329), (1947, 9703), (3443, 5487)]