18987462

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{1531}}^1$

素因数の和:1605

約数の個数: 48

約数和(自身を含む): 45169488

約数和(自身を除く): 26182026

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 53, 78, 106, 117, 159, 234, 318, 477, 689, 954, 1378, 1531, 2067, 3062, 4134, 4593, 6201, 9186, 12402, 13779, 19903, 27558, 39806, 59709, 81143, 119418, 162286, 179127, 243429, 358254, 486858, 730287, 1054859, 1460574, 2109718, 3164577, 6329154, 9493731, 18987462]

約数ペア:

[(1, 18987462), (2, 9493731), (3, 6329154), (6, 3164577), (9, 2109718), (13, 1460574), (18, 1054859), (26, 730287), (39, 486858), (53, 358254), (78, 243429), (106, 179127), (117, 162286), (159, 119418), (234, 81143), (318, 59709), (477, 39806), (689, 27558), (954, 19903), (1378, 13779), (1531, 12402), (2067, 9186), (3062, 6201), (4134, 4593)]