20197980738

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{5077421}}^1$

素因数の和:5077459

約数の個数: 48

約数和(自身を含む): 49900903416

約数和(自身を除く): 29702922678

約数列:

[1, 2, 3, 6, 9, 13, 17, 18, 26, 34, 39, 51, 78, 102, 117, 153, 221, 234, 306, 442, 663, 1326, 1989, 3978, 5077421, 10154842, 15232263, 30464526, 45696789, 66006473, 86316157, 91393578, 132012946, 172632314, 198019419, 258948471, 396038838, 517896942, 594058257, 776845413, 1122110041, 1188116514, 1553690826, 2244220082, 3366330123, 6732660246, 10098990369, 20197980738]

約数ペア:

[(1, 20197980738), (2, 10098990369), (3, 6732660246), (6, 3366330123), (9, 2244220082), (13, 1553690826), (17, 1188116514), (18, 1122110041), (26, 776845413), (34, 594058257), (39, 517896942), (51, 396038838), (78, 258948471), (102, 198019419), (117, 172632314), (153, 132012946), (221, 91393578), (234, 86316157), (306, 66006473), (442, 45696789), (663, 30464526), (1326, 15232263), (1989, 10154842), (3978, 5077421)]