3997994

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1997}}^1$

素因数の和:2030

約数の個数: 32

約数和(自身を含む): 8055936

約数和(自身を除く): 4057942

約数列:

[1, 2, 7, 11, 13, 14, 22, 26, 77, 91, 143, 154, 182, 286, 1001, 1997, 2002, 3994, 13979, 21967, 25961, 27958, 43934, 51922, 153769, 181727, 285571, 307538, 363454, 571142, 1998997, 3997994]

約数ペア:

[(1, 3997994), (2, 1998997), (7, 571142), (11, 363454), (13, 307538), (14, 285571), (22, 181727), (26, 153769), (77, 51922), (91, 43934), (143, 27958), (154, 25961), (182, 21967), (286, 13979), (1001, 3994), (1997, 2002)]