17989972

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{4493}}^1$

素因数の和:4528

約数の個数: 48

約数和(自身を含む): 42279552

約数和(自身を除く): 24289580

約数列:

[1, 2, 4, 7, 11, 13, 14, 22, 26, 28, 44, 52, 77, 91, 143, 154, 182, 286, 308, 364, 572, 1001, 2002, 4004, 4493, 8986, 17972, 31451, 49423, 58409, 62902, 98846, 116818, 125804, 197692, 233636, 345961, 408863, 642499, 691922, 817726, 1284998, 1383844, 1635452, 2569996, 4497493, 8994986, 17989972]

約数ペア:

[(1, 17989972), (2, 8994986), (4, 4497493), (7, 2569996), (11, 1635452), (13, 1383844), (14, 1284998), (22, 817726), (26, 691922), (28, 642499), (44, 408863), (52, 345961), (77, 233636), (91, 197692), (143, 125804), (154, 116818), (182, 98846), (286, 62902), (308, 58409), (364, 49423), (572, 31451), (1001, 17972), (2002, 8986), (4004, 4493)]